Hossam M. H. Shalaby

**Professor,**
Electrical Engineering Department,
Faculty of Engineering,
Alexandria University, Egypt.

**Email:**
shalaby@ieee.org

**Email:**
hossam.shalaby@alexu.edu.eg

Academic Qualifications

- Ph.D., University of Maryland, College Park, USA, 1991.
- M.S., Alexandria University, Egypt, 1986.
- B.S., Alexandria University, Egypt, 1983.

Work Experience

- Professor, Alexandria University, Egypt, 2001–present.
- Professor, Egypt-Japan University of Science and Technology (E-JUST), Alexandria, Egypt, 2017–present.
- Chairperson, Egypt-Japan University of Science and Technology (E-JUST), Alexandria, Egypt, 2010–2016.
- Adjunct Professor, Virginia Tech MENA, Alexandria, Egypt, 2009.
- Adjunct Professor, American University, Cairo, Egypt, 2009.
- Adjunct Professor, Laval University, Quebec, Canada, 2000–2004.
- Associate Professor, Alexandria University, Egypt, 1996–2001.
- Associate Professor, Nanyang Technological University, Singapore, 1998–2000.
- Associate Professor, International Islamic University Malaysia, Kuala Lumpur, Malaysia, 1996–1997.
- Assistant Professor, Alexandria University, Egypt, 1991–1996.

Professional Associations

- Senior Member, Institute of Electrical and Electronics Engineering (IEEE), USA.
- Senior Member, The Optical Society (OSA), USA.
- Student Branch Counselor (Alexandria University), IEEE Alexandria & North Delta Subsection, 2002–2006.

Honors and Awards

- University Excellence Award, Alexandria University, Egypt, 2009.
- State Excellence Award in Engineering Sciences, Academy of Scientific Research and Technology, Egypt, 2007.
- Shoman Prize for Young Arab Researchers, Abdul Hameed Shoman Foundation, Jordan, 2002.
- State Incentive Award in Engineering Sciences, Academy of Scientific Research and Technology, Egypt, 2001.
- University Incentive Award, Alexandria University, Egypt, 1996.
- State Incentive Award in Engineering Sciences, Academy of Scientific Research and Technology, Egypt, 1995.
- Soliman Abd-El-Hay Award, Academy of Scientific Research and Technology, Egypt, 1995.
- SRC Fellowship, Systems Center (Now the Institute for Systems Research), University of Maryland, USA, 1987–1990.

Teaching at Alexandria University

- 0714690: Optical WDM Networks.
- EE365: Optical Devices.
- EE363: Optical Transmission Media.
- EE482: Optical Communications Systems.
- EE486: Communication Networks.

Teaching at E-JUST

- ECE607: High Speed Communications Networks.
- ECE614: Advanced Optical Communications Systems.
- ECE617: Silicon Photonics.

Photonics Systems Lab (PSL) at E-JUST

- The Photonics Systems Lab (PSL) is located within E-JUST campus in Borg El-Arab, Alexandria, Egypt.

Final Year Projects

- LTE Multiplexing and Channel Coding Implementation.
- Simulation and Design of Optical Burst Switched Networks.
- Design of a Voice over IP Communication System.

Islam

- Investigating Islam.
- Prophet Muhammad (peace be upon him).
- Rules for Reading Quran.
- Holy Quran (in Arabic).
- Holy Quran (includes English translation).
- Holy Quran (includes English translation and Arabic meaning).

Research Interests and Projects

- Silicon Photonics and Photonic Crystals.
- Visible-Light Communications (VLC).
- Free-Space Optics (FSO).
- Optical Space-Division Multiplexing (SDM).
- Coherent Lightwave Systems.
- Optical Transport and Access Networks.
- Information Theory and Coding.

Research Citation

Publications

First: Selected Journal Papers

J. A. H. Odoeze, M. F. O. Hameed, H. M. H. Shalaby, and S. S. A. Obayya, “Si-core photonic crystal fiber transverse-electric pass polarizer,”

*J. Opt. Soc. Am. B*, vol. 35, no. 5, pp. 980–986, May 2018. Download a copyH. S. Khallaf, A. E. Elfiqi, H. M. H. Shalaby, S. Sampei, and S. S. A. Obayya, “On the performance evaluation of

*L*QAM-MPPM techniques over exponentiated Weibull fading free-space optical channels,”*Opt. Commun.*, vol. 416, pp. 41–49, June 1, 2018. Download a copyH. M. H. Shalaby, “Bidirectional mode-division multiplexers with antireflection gratings,”

*OSA Appl. Opt.*, vol. 57, no. 3, pp. 476–484, Jan. 20, 2018. Download a copyA. E. Farghal and H. M. H. Shalaby, “Reducing inter-core crosstalk impact via code-interleaving and bipolar 2-PPM for core-multiplexed SAC OCDMA PON,”

*IEEE/OSA J. Opt. Commun. Net.*, vol. 10, no. 1, pp. 35–45, Jan. 2018. Download a copyO. M. Nawwar, H. M. H. Shalaby, and R. K. Pokharel, “Modeling, simulation, and fabrication of bi-directional mode-division multiplexing (BMDM) for silicon-on-insulator platform,”

*OSA Appl. Opt.*, vol. 57, no. 1, pp. 42–51, Jan. 1, 2018. Download a copyH. S. Khallaf, H. M. H. Shalaby, J. M. Garrido-Balsells, and S. Sampei, “Performance analysis of a hybrid QAM-MPPM technique over turbulence-free and gamma-gamma free-space optical channels,”

*IEEE/OSA J. Opt. Commun. Net.*, vol. 9, no. 2, pp. 161–171, Feb. 2017. Download a copyS. D. Mohamed, H. M. H. Shalaby, I. Andonovic, and M. H. Aly, “Performance analysis of modified asymmetrically-clipped optical orthogonal frequency-division multiplexing systems,”

*Opt. Commun.*, vol. 380, pp. 61–68, Dec. 1, 2016. Download a copyA. S. Ghazy, H. A. I. Selmy, and H. M. H. Shalaby, “Fair resource allocation schemes for cooperative dynamic free space optical networks,”

*IEEE/OSA J. Opt. Commun. Net.*, vol. 8, no. 11, pp. 822–834, Nov. 2016. Download a copyH. M. H. Shalaby, “Bi-directional coupler as a mode-division multiplexer/demultiplexer,”

*IEEE/OSA J. Lightwave Technol.*, vol. 34, no. 15, pp. 3633–3640, Aug. 1, 2016. Download a copyA. E. El-Fiqi, A. E. Morra, S. F. Hegazy, H. M. H. Shalaby, K. Kato, and S. S. A. Obayya, “Performance evaluation of hybrid DPSK-MPPM techniques in long-haul optical transmission,”

*OSA Appl. Opt.*, vol. 55, no. 21, pp. 5614–5622, July 20, 2016. Download a copyA. E. A. Farghal, H. M. H. Shalaby, K. Kato, and R. K. Pokharel, “Performance analysis of multicode OCDM networks supporting elastic transmission with QoS differentiation,”

*IEEE Trans. Commun.*, vol. 64, no. 2, pp. 741–752, Feb. 2016. Download a copyA. E. Morra, H. M. H. Shalaby, S. F. Hegazy, and S. S. A. Obayya, “Hybrid direct-detection differential phase shift keying-multipulse pulse position modulation techniques for optical communication systems,”

*Opt. Commun.*, vol. 357, pp. 86–94, Dec. 15, 2015. Download a copyH. S. Khallaf, J. M. Garrido-Balsells, H. M. H. Shalaby, and S. Sampei, “SER analysis of MPPM-coded MIMO-FSO system over uncorrelated and correlated gamma-gamma atmospheric turbulence channels,”

*Opt. Commun.*, vol. 356, pp. 530–535, Dec. 1, 2015. Download a copyA. E. Farghal, H. M. H. Shalaby, K. Kato, and R. K. Pokharel, “Optical code-division multiplexing (OCDM) networks adopting code-shift keying/overlapping PPM signaling: Proposal and performance analysis,”

*IEEE Trans. Commun.*, vol. 63, no. 10, pp. 3779–3788, Oct. 2015. Download a copyM. Hafez, T. Khattab, and H. M. H. Shalaby, “Blind SNR estimation of Gaussian-distributed signals in Nakagami fading channels,”

*IEEE Trans. Wireless Commun.*, vol. 14, no. 7, pp. 3509–3518, July, 2015. Download a copyJ. K. Hmood, K. A. Noordin, S. W. Harun, and H. M. H. Shalaby, “ Mitigation of phase noise in all-optical OFDM systems based on minimizing interaction time between subcarriers,”

*Opt. Commun*., vol. 355, pp. 313–320, June 26, 2015. Download a copyH. M. H. Shalaby, “Maximum achievable constrained power efficiencies of MPPM-

*L*QAM techniques,”*IEEE Photonics Technol. Lett.*, vol. 27, no. 12, pp. 1265–1268, June 15, 2015. Download a copyJ. K. Hmood, S. D. Emami, K. A. Noordin, H. Ahmad, S. W. Harun, and H. M. H. Shalaby, “Optical frequency comb generation based on chirping of Mach-Zehnder Modulators,”

*Opt. Commun*., vol. 344, pp. 139–146, June 1, 2015. Download a copyJ. K. Hmood, S. W. Harun, S. D. Emami, A. Khodaei, K. A. Noordin, H. Ahmad, and H. M. H. Shalaby, “Performance analysis of an all-optical OFDM system in presence of non-linear phase noise,”

*Opt. Express*, vol. 23, no. 4, pp. 3886–3900, Feb. 23, 2015. Download a copyM. M. Selim, O. Muta, H. M. H. Shalaby, and H. Furukawa, “Chunk-based resource allocation in multi-cell OFDMA systems with fairness guarantee,”

*IEICE Communications Express (ComEX)*, vol. 4, no. 2, pp. 31–37, Feb. 2, 2015. Download a copyA. E. Farghal, H. M. H. Shalaby, and Z. Kawasaki, “Multirate multiservice all-optical code switched GMPLS core network utilizing multicode variable-weight optical code-division multiplexing,”

*IEEE/OSA J. Opt. Commun. Net.*, vol. 6, no. 8, pp. 670–683, Aug. 2014. Download a copyM. M. Selim, O. Muta, H. M. H. Shalaby, and H. Furukawa, “Low complexity QoS-aware subcarrier allocation for MISO-OFDMA systems,”

*IEICE Communications Express (ComEX)*, vol. 3, no. 8, pp. 235–240, Aug. 18, 2014. Download a copyA. E. Farghal, H. M. H. Shalaby, and Z. Kawasaki, “Performance analysis of multirate multiservice optical CDMA networks adopting overlapping PPM signaling,”

*IEEE/OSA J. Lightwave Technol.*, vol. 32, no. 15, pp. 2649–2658, Aug. 1, 2014. Download a copyA. I. Abd El-Rahman, S. I. Rabia, and H. M. H. Shalaby, “Assessment of an optical burst switched core node with a restricted number of simultaneous active users using the burst error loss rate,”

*IEEE/OSA J. Opt. Commun. Net.*, vol. 6, no. 4, pp. 408–420, Apr. 2014. Download a copyH. Selmy, H. M. H. Shalaby, and Z. Kawasaki, “Proposal and performance evaluation of a hybrid BPSK-modified MPPM technique for optical fiber communications systems,”

*IEEE/OSA J. Lightwave Technol.*, vol. 31, no. 22, pp. 3535–3545, Nov. 15, 2013. Download a copyA. E. Morra, H. S. Khallaf, H. M. H. Shalaby, and Z. Kawasaki, “Performance analysis of both shot- and thermal-noise limited multi-pulse PPM receivers in gamma-gamma atmospheric channels,”

*IEEE/OSA J. Lightwave Technol.*, vol. 31, no. 19, pp. 3142–3150, Oct. 1, 2013. Download a copyS. E. Mirnia, A. Zarei, S. D. Emami, S. W. Harun, H. Arof, H. Ahmad, and H. M. H. Shalaby, “Proposal and performance evaluation of an efficient RZ-DQPSK modulation scheme in all-optical OFDM transmission systems,”

*IEEE/OSA J. Opt. Commun. Net.*, vol. 5, no. 9, pp. 932–944, Sept. 2013. Download a copyH. M. H. Shalaby, “Performance analysis of SAC-OCDMA systems adopting overlapping PPM schemes,”

*IEEE/OSA J. Lightwave Technol.*, vol. 31, no. 12, pp. 1856–1866, June 15, 2013. Download a copyM. H. Morsy-Osman, M. Y. S. Sowailem, A. I. Abd El-Rahman, and H. M. H. Shalaby, “Performance evaluation of an optical burst switched core node with generalized arrivals and partial wavelength conversion capability,”

*IEEE/OSA J. Opt. Commun. Net.*, vol. 4, no. 12, pp. 997–1007, Dec. 2012. Download a copyH. M. H. Shalaby, “Efficient use of PPM in spectral-amplitude-coding optical CDMA systems,”

*IEEE/OSA J. Lightwave Technol.*, vol. 30, no. 22, pp. 3512–3519, Nov. 15, 2012. Download a copyH. Selmy, H. M. H. Shalaby, and Z. Kawasaki, “Performance analysis of gradual multi-pulse pulse position modulation in deep space optical communications,”

*IEEE/OSA J. Opt. Commun. Net.*, vol. 4, no. 10, pp. 812–820, Oct. 2012. Download a copyH. M. H. Shalaby, “Closed-form expression for the bit-error rate of spectral-amplitude-coding optical CDMA systems,”

*IEEE Photonics Technol. Lett.*, vol. 24, pp. 1285–1287, Aug. 1, 2012. Download a copyH. M. H. Shalaby, “Comments on “An Enhanced Detection Technique for Spectral Amplitude Coding Optical CDMA Systems”,”

*IEEE Photonics Technol. Lett.*, vol. 24, no. 15, pp. 1356–1357, Aug. 1, 2012. Download a copyA. I. Abd El-Rahman, S. I. Rabia, and H. M. H. Shalaby, “MAC-layer performance enhancement using control packet buffering in optical burst switched networks,”

*IEEE/OSA J. Lightwave Technol.,*vol. LT-30, no. 11, pp. 1578–1586, June 1, 2012. Download a copyI. A. M. Ashour, S. Shaari, H. M. H. Shalaby, and P. S. Menon, “Investigation of in-band transmission of both spectral amplitude coding/optical code division multiple-access and wavelength division multiplexing signals,”

*SPIE Opt. Eng*., vol. 50(6), pp. 065001(1–7), June 2011. Download a copyM. Y. S. Sowailem, M. H. S. Morsy, and H. M. H. Shalaby, “Employing code domain for contention resolution in optical burst switched networks with detailed performance analysis,”

*IEEE/OSA J. Lightwave Technol.*, vol. LT-27, pp. 5284–5294, Dec. 2009. Download a copyM. H. S. Morsy, M. Y. S. Sowailem, and H. M. H. Shalaby, “Enhanced mathematical model for both throughput and blocking probability of optical burst switched networks,”

*SPIE Opt. Eng*., vol. 48(8), pp. 085003(1–10), Aug. 2009. Download a copyT. Eltaif, H. M. H. Shalaby, S. Shaari, and M. M. N. Hamarsheh, “Performance enhancement of successive interference cancellation scheme based on spectral amplitude coding for optical code-division multiple-access systems using Hadamard codes,”

*SPIE Opt. Eng.*, vol. 48(4), pp. 045002(1–7), Apr. 2009. Download a copyE. Inaty, R. Raad, P. Fortier, and H. M. H. Shalaby, “Above the nominal limit performance evaluation of multiwavelength optical code-division multiple-access systems,”

*SPIE Opt. Eng.*, vol. 48(3), pp. 035003(1–9), Mar. 2009. Download a copyE. Inaty, R. Raad, P. Fortier, and H. M. H. Shalaby, “A fair QoS-based resource allocation scheme for a time-slotted optical OV-CDMA network: A unified approach,”

*IEEE/OSA J. Lightwave Technol.*, vol. LT-27, pp. 2–11, Jan. 2009. Download a copyT. Eltaif, H. M. H. Shalaby, S. Shaari, and M. M. N. Hamarsheh, “Performance analysis of a hybrid fiber Bragg grating-based spectral-amplitude-coding/successive interference cancellation for optical CDMA systems,”

*Opt. Commun*., vol. 282(1), pp. 1–6, Jan. 2009. Download a copyZ. A. El-Sahn, Y. M. Abd-El-Malek, H. M. H. Shalaby, and E. A. El-Badawy, “Significance in adding a queuing subsystem to the

*R*^{3}*T*random access OCDMA protocol,”*IEEE Trans. Commun.*, vol. COM-56, pp. 1601–1605, Oct. 2008. Download a copyT. Eltaif, H. M. H. Shalaby, S. Shaari, and M. M. N. Hamarsheh, “Analytical comparison of optical code-division multiple-access systems with and without a successive interference cancellation scheme using modified prime-sequence codes,”

*SPIE Opt. Eng.,*vol. 47(9), pp. 095001(1–6), Sept. 2008. Download a copyT. Eltaif, H. M. H. Shalaby, S. Shaari, and M. M. N. Hamarsheh, “Proposal of successive interference cancellation scheme in optical code-division multiple access systems,”

*SPIE Opt. Eng.,*vol. 47(3), pp. 035006(1–6), Mar. 2008. Download a copyZ. A. El-Sahn, Y. M. Abd-El-Malek, H. M. H. Shalaby, and E. A. El-Badawy, “Performance of the

*R*^{3}*T*random-access OCDMA protocol in noisy environment,”*IEEE J. Sel. Topics Quantum Electron.*, vol. 13, pp. 1396–1402, September/October 2007. Download a copyR. Raad, E. Inaty, P. Fortier, and H. M. H. Shalaby, “Optimal resource allocation scheme in a multirate overlapped optical CDMA system,”

*IEEE/OSA J. Lightwave Technol.*, vol. LT-25, pp. 2044–2053, Aug. 2007. Download a copyM. Abd-El-Malek, Z. A. El-Sahn, H. M. H. Shalaby, E. A. El-Badawy, “New optical random access code-division multiple-access protocol with stop-and-wait automatic repeat request,”

*SPIE Opt. Eng.,*vol. 46(6), pp. 056007(1–8), June 2007. Download a copyH. M. H. Shalaby, “A simplified performance analysis of optical burst-switched networks,”

*IEEE/OSA J. Lightwave Technol.*, vol. LT-25, pp. 986–995, Apr. 2007. Download a copyM. M. N. Hamarsheh, M. K. Abdullah, S. Khatun, and H. M. H. Shalaby, “Fast frequency modulation optical code division multiple access communication system,”

*Optics & Laser Technology*, vol. 39(3), pp. 605–609, April 2007. Download a copyE. Inaty, R. Raad, P. Fortier, and H. M. Shalaby, “Performance comparison between S-ALOHA and

*R*^{3}*T*protocols for multirate OFFH-CDMA systems in optical packet networks,”*J. Opt. Netw.*vol. 5, pp. 927–936, Dec. 2006. Download a copyM. A. A. Mohamed, H. M. H. Shalaby, and E. A. El-Badawy, “Performance analysis of an optical CDMA MAC protocol with variable-size sliding window,”

*IEEE/OSA J. Lightwave Technol.*, vol. LT-24, pp. 3590–3597, Oct. 2006. Download a copyM. M. N. Hamarsheh, M. K. Abdullah, S. Khatun, and H. M. H. Shalaby, “Design and analysis of a dynamic spectral encoding code-division multiple-access communication system,”

*SPIE Opt. Eng.,*vol. 45(10), pp. 105005(1–5), Oct. 2006. Download a copyM. M. N. Hamarsheh, M. K. Abdullah, S. Khatun, and H. M. H. Shalaby, “Design and analysis of synchronous dynamic frequency hopping code division multiple access communication system,”

*Optical Fiber Technology*, vol. 12, pp. 334–339, Oct. 2006. Download a copyM. A. A. Mohamed, H. M. H. Shalaby, and E. A. El-Badawy, “Optical code-division multiple-access protocol with selective retransmission,”

*SPIE Opt. Eng.,*vol. 45(5), pp. 055007(1–8), May 2006. Download a copyR. Raad, E. Inaty, P. Fortier, and H. M. H. Shalaby, “Optical S-ALOHA/CDMA systems for multirate applications: Architecture, performance evaluation, and system stability,”

*IEEE/OSA J. Lightwave Technol.*, vol. LT-24, pp. 1968–1977, May 2006. Download a copyM. M. N. Hamarsheh, H. M. H. Shalaby, and M. K. Abdullah, “Design and analysis of a dynamic code division multiple access communication system based on tunable optical filter,”

*IEEE/OSA J. Lightwave Technol.*, vol. LT-23, pp. 3959–3965, Dec. 2005. Download a copyE. Inaty, H. M. H. Shalaby, and P. Fortier, “On the cutoff rates of a multiclass OFFH-CDMA system,”

*IEEE Trans. Commun*., vol. COM-53, pp. 323–334, Feb. 2005. Download a copyH. M. H. Shalaby, “Optimality of the users strength in optical PPM-CDMA channels,”

*IEEE Trans. Commun.*, vol. COM-53, pp. 315–322, Feb. 2005. Download a copyH. M. H. Shalaby, “Performance analysis of an optical CDMA random access protocol,”

*IEEE/OSA J. Lightwave Technol*., vol. LT-22, pp. 1233–1241, May 2004. Download a copyH. M. H. Shalaby, “Optical CDMA random access protocols with and without pretransmission coordination,”

*IEEE/OSA J. Lightwave Technol*., vol. LT-21, pp. 2455–2462, Nov. 2003. Download a copyH. M. H. Shalaby, “Complexities, error probabilities, and capacities of optical OOK-CDMA communication systems,”

*IEEE Trans. Commun.*, vol. COM-50, pp. 2009–2017, Dec. 2002. Download a copyE. Inaty, H. M. H. Shalaby, and P. Fortier, “A new transmitter-receiver architecture for noncoherent multirate OFFH-CDMA system with fixed optimal detection threshold,”

*IEEE/OSA J. Lightwave Technol*., vol. LT-20, pp. 1885–1894, Nov. 2002. Download a copyE. Inaty, H. M. H. Shalaby, P. Fortier, and L.A. Rusch, “Multirate optical fast frequency hopping CDMA system using power control,”

*IEEE/OSA J. Lightwave Technol*., vol. LT-20, pp. 166–177, Feb. 2002. Download a copyT. S. Lee, H. M. H. Shalaby, and H. Ghafouri-Shiraz, “Estimation and cancellation of multi-user interference in synchronous fiber-optic PPM-CDMA system using Manchester coding,”

*Optics & Laser Technology,*vol. 33 (8), pp. 573–580, Nov. 2001. Download a copyZ. Wei, H. M. H. Shalaby, and H. G. Shiraz, “Modified quadratic congruence codes for fiber Bragg-grating-based spectral-amplitude-coding optical CDMA systems,”

*IEEE/OSA J. Lightwave Technol.,*vol. LT-19, pp. 1274–1281, Sept. 2001. Download a copyZ. Wei, H. G. Shiraz, and H. M. H. Shalaby, “New code families for fiber-Bragg-grating-based spectral-amplitude-coding optical CDMA systems,”

*IEEE Photonics Technol. Lett*., vol. 13, pp. 890–892, Aug. 2001. Download a copyZ. Wei, H. G. Shiraz, and H. M. H. Shalaby, “Performance analysis of optical spectral-amplitude-coding CDMA systems using a super-fluorescent fiber source,”

*IEEE Photonics Technol. Lett.,*vol. 13, pp. 887–889, Aug. 2001. Download a copyT. S. Lee, H. M. H. Shalaby, and H. Ghafouri-Shiraz, “Interference reduction in synchronous fiber-optic PPM-CDMA Systems,”

*Microwave and Optical Technol. Lett*., vol. 30 (3), pp. 202–205, Aug. 2001. Download a copyX. Zhou, C. Lu, P. Shum, H. M. H. Shalaby, T. H. Cheng, and P. Ye, “Performance analysis of an all-optical clock extraction circuit based on a Fabry-Perot resonator,”

*IEEE/OSA J. Lightwave Technol.,*vol. LT-19, pp. 603–613, May 2001. Download a copyH. M. H. Shalaby “Optical OPPM-CDMA recievers with chip-level detectors,”

*IEE Proc.-Commun.,*vol. 148, pp. 31–37, Feb. 2001. Download a copyX. Zhou, H. M. H. Shalaby, C. Lu, and T. Cheng, “A performance analysis of all-optical clock extraction circuit based on stimulated brillouin scattering,”

*IEEE/OSA J. Lightwave Technol.,*vol. LT-18, pp. 1453–1466, Oct. 2000. Download a copyH. M. H. Shalaby, “Maximum achievable number of users in optical PPM-CDMA local area networks,”

*IEEE/OSA J. Lightwave Technol.,*vol. LT-18, pp. 1187–1196, Sept. 2000. Download a copyH. M. H. Shalaby “Effect of thermal noise and APD noise on the performance of OPPM-CDMA receivers,”

*IEEE/OSA J. Lightwave Technol.,*vol. LT-18, pp. 905–914, July 2000. Download a copyX. Zhou, H. M. H. Shalaby, C. Lu, and T. Cheng, “Code for spectral amplitude coding optical CDMA systems,”

*IEE Electron. Lett.,*vol. 36 (8), pp. 728–729, Apr. 2000. Download a copyH. M. H. Shalaby, “Synchronous fiber-optic CDMA systems with interference estimators,”

*IEEE/OSA J. Lightwave Technol*., vol. LT-17, pp. 2268–2275, Nov. 1999. Download a copyH. M. H. Shalaby, “Direct-detection optical overlapping PPM-CDMA communication systems with double optical hard-limiters,”

*IEEE/OSA**J. Lightwave Technol.*, vol. LT-17, pp. 1158–1165, July 1999. Download a copyH. M. H. Shalaby, “A performance analysis of optical overlapping PPM-CDMA communication systems,”

*IEEE/OSA**J. Lightwave Technol.,*LT-17, pp. 426–433, Mar. 1999. Download a copyH. M. H. Shalaby, “Chip-level detection in optical code-division multiple-access,”

*IEEE/OSA**J. Lightwave Technol.,*vol. LT-16, pp. 1077–1087, June 1998. Download a copyH. M. H. Shalaby, “Cochannel interference reduction in optical synchronous PPM-CDMA systems,”

*IEEE Trans. Commun*., vol. COM-46, pp. 799–805, June 1998. Download a copyH. M. H. Shalaby, “Maximum achievable throughputs for uncoded OPPM and MPPM in optical direct-detection channels,”

*IEEE/OSA**J. Lightwave Technol.,*vol. LT-13, pp. 2121–2128, Nov. 1995. Download a copyH. M. H. Shalaby, “A comparison between the performance of number-state and coherent-state optical CDMA in lossy photon channels,”

*IEEE J. Select. Areas Commun*., vol. SAC-13, pp. 592–602, Apr. 1995. Download a copyH. M. H. Shalaby, “Performance analysis of optical synchronous CDMA communication systems with PPM signaling,”

*IEEE Trans. Commun*., vol. COM-43, pp. 624–634, February/March/April 1995. Download a copyH. M. H. Shalaby, “Capacity and cutoff rate for optical overlapping pulse-position modulation channels,”

*IEEE Trans. Commun.,*vol. COM-43, pp. 1284–1288, February/March/April 1995. Download a copyH. M. H. Shalaby and A. Papamarcou, “Error exponents for distributed detection of Markov sources,”

*IEEE Trans. Inform. Theory*, vol. IT-40, pp. 397–408, Mar. 1994. Download a copyH. M. H. Shalaby and A. Papamarcou, “A note on the asymptotics of distributed detection with feedback,”

*IEEE Trans. Inform. Theory*, vol. IT-39, pp. 633–640, Mar. 1993. Download a copyH. M. H. Shalaby and A. Papamarcou, “Multiterminal detection with zero-rate data compression,”

*IEEE Trans. Inform. Theory*, vol. IT-38, pp. 254–267, Mar. 1992. Download a copyO. M. Nawwar, H. M. H. Shalaby, and R. K. Pokharel, “First-order mode compact focusing grating coupler for SOI interconnect,” to appear in

*Proc. IEEE Summer Topicals Meeting Series (SUM 2018)*, Waikoloa, Hawaii, July 9–11, 2018.B. E. Abu-elmaaty, M. S. Sayed, H. M. H. Shalaby, and R. K. Pokharel, “Silicon-on-insulator fundamental to first-order dual polarization mode converter based on Si-Si3N4 phase plate waveguide,” to appear in

*Proc. 20th Int. Conf. Transparent Optical Networks (ICTON 2018)*, Bucharest, Romania, July 1–5, 2018.E. Shawky, M. A. El-Shimy, H. M. H. Shalaby, A. Mokhtar, and E.-S. A. El-Badawy, “Optical channel estimation based on Kalman filtering for VLC systems adopting DCO-OFDM,” to appear in

*Proc. 20th Int. Conf. Transparent Optical Networks (ICTON 2018)*, Bucharest, Romania, July 1–5, 2018.A. M. Abdelaziz, M. M. Khalil, M. A. El-Shimy, M. Alghoniemy, and H. M. H. Shalaby, “Reduced complexity interleaved multi-carrier CDMA for passive optical networks,” to appear in

*Proc. IEEE Conf. on Lasers and Electro-Optics (CLEO 2018)*, San Jose, CA, May 13–18, 2018.M. A. Elrabiaey, H.M. H. Shalaby, E.-S. A. Youssef, and S. S. A. Obayya, “Novel ultralow power optical memory using liquid crystal,” to appear in

*Proc. SPIE Photonics Europe*, Strasbourg, France, Apr. 22–26, 2018.J. A. H. Odoeze, M. F. O. Hameed, H. M. H. Shalaby, and S. S. A. Obayya, “Novel design of photonic crystal fiber TE-pass polarizer,” to appear in

*Proc. 26th International Workshop on Optical Wave & Waveguide Theory and Numerical Modelling (OWTNM 2018)*, Bad Sassendorf, Germany, Apr. 13–14, 2018.M. A. Elrabiaey, Z. A. El-Sahn, H. M. H. Shalaby, and E.-S. A. Youssef, “Implementation of OCDMA using nested ring resonators,” in

*Proc. IEEE Photonics Conference (IPC 2017)*, Orlando, Florida, Oct. 1–5, 2017, pp. 675–676. Download a copyO. M. Nawwar, H. M. H. Shalaby, and R. K. Pokharel, “Design and fabrication of a bi-directional mode-division multiplexer (BMDM) for optical interconnects,” in

*Proc. IEEE Photonics Conference (IPC 2017)*, Orlando, Florida, Oct. 1–5, 2017, pp. 659–660. Download a copyS. D. Mohamed, I. Andonovic, H. M. H. Shalaby, and M. H. Aly, “Performance of optical OFDM systems in atmospheric turbulence channel,” in

*Proc. 2nd Int. Conf. Adv. Tech. Appl. Sci. (ICaTAS 2017)*, Alexandria, Egypt, Sept. 12–14, 2017, pp. 54–62. Download a copyH. S. Khallaf, A. E. El-Fiqi, M. Elwekeil, H. M. H. Shalaby, and S. S. A. Obayya, “Efficiency of opportunistic cellular/LiFi traffic offloading,” in

*Proc. 19th Int. Conf. Transparent Optical Networks (ICTON 2017)*, Catalonia, Spain, July 2–6, 2017, pp. We.A2.4(1–4). Download a copyH. S. Khallaf, A. E. El-Fiqi, H. M. H. Shalaby, and S. S. A. Obayya, “Average SER of MPPM technique over exponentiated Weibull fading FSO channels considering fog and beam divergence,” in

*Proc. 19th Int. Conf. Transparent Optical Networks (ICTON 2017)*, Catalonia, Spain, July 2–6, 2017, pp. Tu.P.11(1–4). Download a copyM. A. F. Banawan, Z. A. El-Sahn, M. B. Alghoniemy, and H. M. H. Shalaby, “Hybrid phase shift keying-multipulse pulse-position modulated O-OFDM signals for NG-PONs,” in

*Proc. 19th Int. Conf. Transparent Optical Networks (ICTON 2017)*, Catalonia, Spain, July 2–6, 2017, pp. Tu.P.3(1–4). Download a copyH. S. Khallaf, A. S. Ghazy, H.M. H. Shalaby, and S. S. A. Obayya, “Performance analysis of visible light communication systems over fading channels,” in

*Proc. 19th Int. Conf. Transparent Optical Networks (ICTON 2017)*, Catalonia, Spain, July 2–6, 2017, pp. Mo.C2.4(1–4). Download a copyO. M. Nawwar, H. M. H. Shalaby, and R. K. Pokharel, “Compact mode-division de(multiplexer) with anti-reflection grating for optical interconnects,” in

*Proc. Asia Communications and Photonics Conference (ACP 2016)*, Hong Kong, Nov. 2–5, 2016, pp. AF1G.7(1–3). Download a copyJ. A. H. Odoeze, O. M. Nawwar, and H. M. H. Shalaby, “J-rib waveguide as a mode-division demultiplexer,” in

*Proc. Asia Communications and Photonics Conference (ACP 2016)*, Hong Kong, Nov. 2–5, 2016, pp. AF1G.6(1–3). Download a copyM. A. F. Banawan, Z. A. El-Sahn, and H. M. H. Shalaby, “MIMO equalization for multi-core fiber-based systems using the affine projection algorithm,” in

*Proc. Asia Communications and Photonics Conference (ACP 2016)*, Hong Kong, Nov. 2–5, 2016, pp. pp. ATh2C.5(1–3). Download a copyA. S. Ghazy, H. A. I. Selmy, and H. M. H. Shalaby, “Fair optimal transceivers placement in foggy cooperative dynamic FSO networks,” in

*Proc. Asia Communications and Photonics Conference (ACP 2016)*, Hong Kong, Nov. 2–5, 2016, pp. AF2A.142((1–3). Download a copyH. S. Khallaf, H. M. H. Shalaby, and S. Sampei, “Transmission analysis of M-ary QAM based wireless services over exponentiated Weibull turbulent RoFSO channels,” in

*Proc. Asia Communications and Photonics Conference (ACP 2016)*, Hong Kong, Nov. 2–5, 2016, pp. AF2A.118(1–3). Download a copyA. E. El-Fiqi, H. M. H. Shalaby, and K. Kato, “Impact of linear mode-coupling on nonlinear performance of long-haul strong-coupled multicore fiber transmission,” in

*Proc. IEEE Photonics Conference (IPC 2016)*, Waikoloa, Hawaii, Oct. 2–6, 2016, pp. 530–531. Download a copyA. E. Morra, M. Rihan, A. E. El-Fiqi, H. M. H. Shalaby, and S. S. A. Obayya, “Evaluation of power efficiency of hybrid modulation techniques,” in

*Proc. IEEE Photonics Conference (IPC 2016)*, Waikoloa, Hawaii, Oct. 2–6, 2016, pp. 33–34. Download a copyA. S. Ghazy, H. A. I. Selmy, Ziad A. El-Sahn, and H. M. H. Shalaby, “Constrained fairness placement scheme in cooperative dynamic free space optical network,” in

*Proc. 18th Int. Conf. Transparent Optical Networks (ICTON 2016)*, Trento, Italy, July 10–14, 2016, pp. Tu.P.21(1–5). Download a copyM. A. F. Banawan, Z. A. El-Sahn, and H. M. H. Shalaby, “Layered PAM-DMT for next generation passive optical networks,” in

*Proc. 18th Int. Conf. Transparent Optical Networks (ICTON 2016)*, Trento, Italy, July 10–14, 2016, pp. Tu.P.2(1–4). Download a copyH. S. Khallaf, A. S. Ghazy, H. M. H. Shalaby, and S. Sampei, “Performance analysis of a hybrid QAM-MPPM technique under gamma-gamma turbulent channels,” in

*Proc. 18th Int. Conf. Transparent Optical Networks (ICTON 2016)*, Trento, Italy, July 10–14, 2016, pp. Tu.A2.4(1–4). Download a copyA. E. El-Fiqi, A. E. Morra, H. M. H. Shalaby, S. S. A. Obayya, and K. Kato, “Performance evaluation of hybrid DBPSK-MPPM technique in long-haul optical transmission,” in

*Proc. IEEE Conf. on Lasers and Electro-Optics (CLEO 2016)*, San Jose, CA, June 5–10, 2016, pp. JTh2A.131(1–2). Download a copyA. S. Ghazy, H. A. I. Selmy, and H. M. H. Shalaby, “Proposed resource allocation schemes for rainy free space optical network,” in

*Proc. 4th Int. Conf. Photonics, Optics and Laser Technology (PHOTOPTICS 2016)*, Rome, Italy, Feb. 27–29 2015, pp. 76–83. Download a copyM. A. F. Banawan, A. M. Hussein, Z. A. El-Sahn, and H. M. H. Shalaby, “Performance of space-division multiplexed systems adopting multi-core fibers and receiver diversity,” in

*Proc. Asia Communications and Photonics Conference (ACP 2015)*, Hong Kong, Nov. 19–23 2015, pp. ASu5D.2(1–3). Download a copyA. S. Ghazy, H. A. I. Selmy, and H. M. H. Shalaby, “Reliable-fair resource allocation schemes for snowy cooperative free space optical networks,” in

*Proc. Asia Communications and Photonics Conference (ACP 2015)*, Hong Kong, Nov. 19–23 2015, pp. ASu1H.4(1–3). Download a copyA. A. I. Ali, A. E. El-Fiqi, Z. A. El-Sahn, H. M. H. Shalaby, and R. K. Pokharel, “Analytical formula of nonlinear interference in few-mode fibers in strong coupling regime,” in

*Proc. 17th Int. Conf. on Transparent Optical Networks (ICTON 2015)*, Budapest, Hungary, July 5–9, 2015, pp. We.D1.6(1–4). Download a copyA. S. Ghazy, H. A. I. Selmy, and H. M. H. Shalaby, “Fair cooperative resource allocation algorithms for foggy free space optical network,” in

*Proc. 17th Int. Conf. on Transparent Optical Networks (ICTON 2015)*, Budapest, Hungary, July 5–9, 2015, pp. Tu.P.2(1–5). Download a copyA. E. El-Fiqi, A. Ismail, Z. A. El-Sahn, H. M. H. Shalaby, and R. K. Pokharel, “Evaluation of nonlinear interference in few-mode fiber using the Gaussian noise model,” in

*Proc. IEEE Conf. on Lasers and Electro-Optics (CLEO 2015)*, San Jose, CA, May 10–15, 2015, pp. JTh2A.53(1–2). Download a copyA. E. Morra and H. M. H. Shalaby, “A hybrid DQPSK-MPPM technique for high sensitivity optical communication systems,” in

*Proc. Third Int. Japan-Egypt Conf. Electron., Commun. Comp. (JEC-ECC 2015)*, Fukuoka, Japan, Mar. 16–18, 2015, pp. 122–123. Download a copyA. E. El-Fiqi, A. Ismail, Z. A. El-Sahn, H. M. H. Shalaby, and R. K. Pokharel, “Nonlinear capacity of few-mode fibers using the Gaussian noise model,” in

*Proc. Third Int. Japan-Egypt Conf. Electron., Commun. Comp. (JEC-ECC 2015)*, Fukuoka, Japan, Mar. 16–18, 2015, pp. 106–107. Download a copyM. M. Selim, O. Muta, H. M. H. Shalaby, and H. Furukawa, “Chunk-based resource allocation in MISO-OFDMA systems with fairness provision,” in

*Proc. Third Int. Japan-Egypt Conf. Electron., Commun. Comp. (JEC-ECC 2015)*, Fukuoka, Japan, Mar. 16–18, 2015, pp. 42–43. Download a copyM. M. Selim, O. Muta, H. Shalaby, and H. Furukawa, “Fairness aware chunk-based resource allocation in multi-cell OFDMA networks,” in

*Proc. 3rd Int. Conf. Connected Vehicles & Expo. (ICCVE 2014)*, Vienna, Austria, Nov 3–7, 2014, pp. 990–995. Download a copyH. S. Khallaf and H. M. H. Shalaby, “Closed form expressions for SER and capacity of shot noise limited MIMO-FSO system adopting MPPM over gamma-gamma atmospheric turbulence channels,” in

*Proc. IEEE Photonics Conference (IPC 2014)*, San Diego, CA, Oct. 12–16, 2014, pp. 619–620. Download a copyH. Selmy, H. M. H. Shalaby, and Z. Kawasaki, “Enhancing optical multi-pulse pulse position modulation using hybrid QPSK-modified MPPM,” in

*Proc. IEEE Photonics Conference (IPC 2014)*, San Diego, CA, Oct. 12–16, 2014, pp. 617–618. Download a copyA. E. Morra, H. M. H. Shalaby, and Z. Kawasaki, “A hybrid DPSK-MPPM technique for high sensitivity optical transmission,” in

*Proc. IEEE Photonics Conference (IPC 2014)*, San Diego, CA, Oct. 12–16, 2014, pp. 615–616. Download a copyE. A. El-Fiky, Z. A. El-Sahn, and H. M. H. Shalaby, “WDM-IDMA solution for NG-PON2 enabled by coherent technology and colorless ONUs,” in

*Proc. IEEE Photonics Conference (IPC 2014)*, San Diego, CA, Oct. 12–16, 2014, pp. 69–70. Download a copyH. S. Khallaf and H. M. H. Shalaby, “Proposal of a hybrid QAM-MPPM technique for optical communications systems,” in

*Proc. 16th Int. Conf. Transparent Optical Networks (ICTON 2014)*, Graz, Austria, July 6–10, 2014, Tu.B1.7(1–4). Download a copyH. Selmy, T. Ismail, and H. M. H. Shalaby, “Enhancing BPSK and OOK modulations using hybrid 2BPSK-OOK technique for optical fiber communications systems,” in

*Proc. 16th Int. Conf. Transparent Optical Networks (ICTON 2014)*, Graz, Austria, July 6–10, 2014., Tu.P.17(1–5). Download a copyS. Hashima, O. Muta, M. Alghoniemy, H. Shalaby, H. Frukawa, S. Elnoubi, and I. Mahmoud, “Area spectral efficiency performance comparison of downlink fractional frequency reuse schemes for MIMO heterogeneous networks,” in

*Proc. Int. Conf. Inform. Sci., Electron. Elect. Eng. (ISEEE 2014)*, Hokkaido, Japan, April 26–28, 2014, pp. 1005–1010. Download a copyS. Hashima, O. Muta, S. Elnoubi, M. Alghoniemy, H. Shalaby, H. Frukawa, and I. Mahmoud, “Analysis and comparison of fractional frequency reuse schemes based on worst case signal to interference power ratio in OFDMA uplink,” in

*Proc. the 13th Ann. Wireless Telecommun. Symp. (WTS 2014)*, Washington, DC, April 9–11. 2014, pp. 1–6. Download a copyA. M. Shata, S. A. Mohamed, A. Abdel Nabi, and H. M. H. Shalaby, “An optical CDMA random access protocol for multi-rate optical networks adopting multi-coding techniques,” in

*Proc. IEEE 16th Int. Conf. on Adv. Commun. Tech. (ICACT 2014)*, Phoenix Park, PyeongChang, Korea, Feb. 16–19, 2014, pp. 1089–1093. Download a copyE. A. El-Fiky, Z. A. El-Sahn, and H. M. H. Shalaby, “Coherent PONs for next generation access: OIDMA versus OCDMA,” in

*Proc. Int. Conf. Comp., Netw. and Commun. (ICNC 2014)*, Honolulu, Hawaii, Feb. 3–6, 2014, pp. 1011–1015. Download a copyM. M. Selim, S. Elnoubi, H. Shalaby, O. Muta, H. Furukawa, “Reduced complexity QoS aware resource allocation technique for MISO-OFDMA systems,” in

*Proc. Int. Conf. Comp., Netw. and Commun. (ICNC 2014)*, Honolulu, Hawaii, Feb. 3–6, 2014, pp. 950–954. Download a copyH. Selmy, H. M. H. Shalaby, and Z. Kawasaki, “Performance enhancement of QPSK modulation using hybrid QPSK-modified MPPM in optical fiber communications,” in

*Proc. Second Int. Japan-Egypt Conf. Electron., Commun. Comp. (JEC-ECC 2013)*, Cairo, Egypt, Dec. 17–19, 2013, pp. 196–198. Download a copyS. D. Mohamed, H. S. Khallaf, H. Shalaby, I. Andonovic, and M. H. Aly, “Two approaches for the modified asymmetrically clipped optical orthogonal frequency division multiplexing system,” in

*Proc. Second Int. Japan-Egypt Conf. Electron., Commun. Comp. (JEC-ECC 2013)*, Cairo, Egypt, Dec. 17–19, 2013, pp. 191–195. Download a copyM. Rihan, M. Elsabrouty, S. Elnouby, H. Shalaby, O. Muta, and H. Furukawa, “Iterative reweighted least squares approach to interference alignment,” in

*Proc. Wireless Days (WD 2013)*, Valencia, Spain, Nov. 13–15, 2013, pp. 1–6. Download a copyE. A. El-Fiky, Z. A. El-Sahn, and H. M. H. Shalaby, “Coherent long reach OIDMA-PONs enabled by electronic dispersion compensation,” in

*Proc. Asia Communications and Photonics Conference (ACP 2013)*, Bejing, China, Nov. 12–15 2013, pp. AF2F.33(1–3). Download a copyS. Hashima, S. Elnoubi, M. Alghoniemy, H. Shalaby, O. Muta, and H. Furukawa, “Performance analysis of uplink fractional frequency reuse using worst case signal to interference ratio,” in

*Proc. Science and Information Conference (SAI 2013)*, London, UK, Oct. 7–9, 2013, pp. 839–844. Download a copyS. D. Mohamed, H. Shalaby, I. Andonovic, and M. H. Aly, “Modified asymmetrically-clipped optical orthogonal frequency-division multiplexing system performance,” in

*Proc. IEEE Photonics Conference IPC 2013)*, Bellevue, WA, Sept. 8–12, 2013, pp. 289–290. Download a copyH. S. Khallaf, H. M. H. Shalaby, and Z. Kawasaki, “Proposal of a hybrid OFDM-PPM technique for free space optical communications systems,” in

*Proc. IEEE Photonics Conference IPC 2013)*, Bellevue, WA, Sept. 8–12, 2013, pp. 287–288. Download a copyS. Hashima, H. Shalaby, S. Elnoubi, M. Alghoniemy, O. Muta, and H. Furukawa, “Performance analysis of fractional frequency reuse based on worst case signal to interference ratio in OFDMA downlink systems,” in

*Proc. 24th Annual IEEE International Symposium on Personnal Indoor and Mobile Radio Communications (PIMRC 2013)*, London, UK, Sept. 8–11, 2013, pp. 616–620. Download a copyA. M. Morsy, X. Rottenberg, H. M. H. Shalaby, and H. A. C. Tilmans, “Design considerations for high performance one-port SAW resonators on quartz,” in

*Proc. 24th Micromechanics and Microsystems Europe Conference (MME 2013)*, Espoo, Finland, Sept. 1–4, 2013, pp. 1–4. Download a copyM. Hafez, T. Khattab, and H. Shalaby, “Modulation-independent non-data-aAided SNR estimator for OFDM signals in Nakagami fading channels,” in

*Proc. 2013 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 2013)*, Victoria, B.C., Canada, Aug. 27–29, 2013, pp. 6–9. Download a copyH. Selmy, H. M. H. Shalaby, H. S. Khallaf, and Z. Kawasaki, “Hybrid BPSK-Modified MPPM: A scheme for enhancing optical MPPM in optical fiber communications,” in

*Proc. 18th European Conf. Netw. Opt. Commun. (NOC 2013)*, Graz, Austria, July 10–12, 2013, pp. 217–224. Download a copyA. E. Morra, H. S. Khallaf, H. M. H. Shalaby, and Z. Kawasaki, “An exact expression for symbol-error rate of multipulse PPM techniques in free-space optics with gamma-gamma channels,” in

*Proc. 18th European Conf. Netw. Opt. Commun. (NOC 2013)*, Graz, Austria, July 10–12, 2013, pp. 93–97. Download a copyA. M. Morsy, E. A. El-Fiky, H. S. Khallaf, and H. M. H. Shalaby, “Performance analysis and comparison of optical IDMA and optical CDMA techniques using unipolar transmission scheme,” in

*Proc. 18th European Conf. Netw. Opt. Commun. (NOC 2013)*, Graz, Austria, July 10–12, 2013, pp. 55–59. Download a copyS. Hashima, S. Elnoubi, M. Alghoniemy, H. Shalaby, O. Muta, and I. Mahmoud, “Analysis of frequency reuse cellular systems using worst case signal to interference ratio,” in

*Proc. 12th Int. Conf. Telecommun. (ConTEL 2013)*, Zagreb, Croatia, June 26–28, 2013, pp. 185–190. Download a copyH. S. Khallaf, A. E. Morra, H. M. H. Shalaby, and Z. Kawasaki, “Performance analysis of free-space optics systems adopting multi-pulse PPM techniques in gamma-gamma channels for thermal noise limited systems,” in

*Proc. 15th Int. Conf. Transparent Optical Networks (ICTON 2013)*, Cartagena, Spain, June 23–27, 2013, Tu.B3.3 (1–4). Download a copyE. A. El-Fiky, A. M. Morsy, Z. A. El-Sahn, and H. M. H. Shalaby, “Coherent OIDMA technique for next generation long reach PONs,” in

*Proc. IEEE Conf. on Lasers and Electro-Optics (CLEO 2013)*, San Jose, CA, June 9–14, 2013, pp. JTu4A.100 (1–2). Download a copyH. Selmy, H. M. H. Shalaby, and Z. Kawasaki, “Enhancing optical multi-pulse pulse position modulation using hybrid BPSK-modified MPPM,” in

*Proc. IEEE Conf. on Lasers and Electro-Optics (CLEO 2013)*, San Jose, CA, June 9–14, 2013, pp. JTu4A.98 (1–2). Download a copyH. S. Khallaf, A. E. Morra, H. M. H. Shalaby, and Z. Kawasaki, “Performance of multipulse PPM techniques in free-space optics with gamma-gamma channels,” in

*Proc. IEEE Conf. on Lasers and Electro-Optics, (CLEO 2013)*, San Jose, CA, June 9–14, 2013, pp. JTu4A.91 (1–2). Download a copyI. A. M. Ashour, S. Shaari, P. S. Menon, H. A. Bakarman, and H. M. H. Shalaby, “Hybrid WDM/optical CDMA system based on hybrid spectral/spatial coding scheme,” in

*Proc. Int. Conf. Advances in Materials Science and Engineering (AMSE 2012)*, Bangkok, Thailand, Sept. 27–28, 2012. Download a copyH. Selmy, H. M. H. Shalaby, and Z. Kawasaki, “Bandwidth utilization enhancement for MPPM using gradual multi-pulse pulse-position modulation,” in

*Proc.**17th European Conf. Netw. Opt. Commun. (NOC 2012)*, Barcelona, Spain, June 19–22, 2012, pp. 1–6. Download a copyH. Selmy, H. M. H. Shalaby, and Z. Kawasaki, “Gradual MPPM: A method to improve bandwidth utilization efficiency in optical MPPM,” in

*Proc.**The 10th Int. Conf. Opt. Internet (COIN 2012)*, Yokohama, Japan, May 29–31, 2012, pp. TuP.10-1–TuP.10-2. Download a copyI. A. M. Ashour, S. Shaari, H. M. H. Shalaby, and P. S. Menon, “Performance and confidentiality comparison of different hybrid SAC/OCDMA-WDM overlay schemes,” in

*Proc. Prog. Electromagnet. Research Symp. (PIERS 2012)*, Kuala Lumpur, Malaysia, Mar. 27–30, 2012, pp. 1594–1599. Download a copyI. A. M. Ashour, H. M. H. Shalaby, and P. S. Menon, “Performance analysis of SAC/optical CDMA and WDM under a hybrid overlay scheme,” in

*Proc. 2nd International Conference on Photonics (ICP 2011)*, Sabah, Malaysia, Oct. 17–19, 2011, pp. 1–4. Download a copyI. A. M. Ashour, H. M. H. Shalaby, and P. S. Menon, “Code development for simultaneous in-band transmission of both SAC-optical CDMA and WDM channels,” in

*Proc. 2nd International Conference on Photonics (ICP 2011)*, Sabah, Malaysia, Oct. 17–19, 2011, pp. 1–4. Download a copyA. I. Abdelrahman, H. M. H. Shalaby, and S. I. Rabia, “Contention resolution using control packet buffering in optical burst switched networks,” in

*Proc. Access Networks and In-house Communications meeting (ANIC 2011)*, Toronto, Canada, June 12–16, 2011, pp. 1–2. Download a copyI. A. M. Ashour, H. M. H. Shalaby, S. Shaari, and P. S. Menon, “Simulation of MQC code of SAC/Optical CDMA and WDM hybrid overlay system,”

*International Conference on Modeling, Simulation and Applied Optimization (ICMSAO 2011)*, Kuala Lumpur, Malaysia, April 19–21, 2011, pp. 1–5. Download a copyI. A. M. Ashour, S. Shaari, H. M. H. Shalaby, P. S. Menon, and H. A. Bakarman, “Hybrid SAC/optical CDMA-WDM overlay system for enhancing network security,” in

*Proc. The 1st International Conference on Photonics (ICP 2010)*, Langkawi, Kedah, Malaysia, July 5–7, 2010, pp. 1–4. Download a copyM. S. Abdullah, A. K. S. Salem, and H. M. H. Shalaby, “Effect of bias point and modulation index of Mach-Zehnder modulator on the performance of coherent optical OFDM in nonlinear and dispersive fiber channels,” in

*Proc. Access Networks and In-house Communications meeting (ANIC 2010)*, Karlsruhe, Germany, June 21–24, 2010, pp. 1–2. Download a copyF. S. EL-Khamy, M. Nasr, H. M. H. Shalaby, and H. T. Mouftah, “Blocking performance for all optical wavelength routed WDM networks under wavelength conversions,” in

*Proc. 12th Int. Conf. on Transparent Optical Networks (ICTON 2010)*, Munich, Germany, June 27–July 1, 2010, pp. We.P.5(1–4). Download a copyI. Ashry and H. M. H. Shalaby, “All-optical variable delay buffer for next generation optical networks,” in

*Proc. 12th Int. Conf. on Transparent Optical Networks (ICTON 2010)*, Munich, Germany, June 27–July 1, 2010, pp. Mo.B1.5(1–3). Download a copyI. Ashry and H. M. H. Shalaby, “Tunable Fabry-Perot interferometer based on fiber Bragg gratings,” in

*Proc. IEEE 17th Int. Conf. Telecommun. (ICT 2010)*, Doha, Qatar, Apr. 4–7, 2010, pp. 534–537. Download a copyM. H. S. Morsy, M. Y. S. Sowailem, and H. M. H. Shalaby, “Upper and lower bounds of burst loss probability for a core node in an optical burst switched network with Pareto distributed arrivals,” in

*Proc. IEEE 17th Int. Conf. Telecommun. (ICT 2010)*, Doha, Qatar, Apr. 4–7, 2010, pp. 523–527. Download a copyM. H. S. Morsy, M. Y. S. Sowailem, and H. M. H. Shalaby, “Performance analysis of a core node equipped with wavelength converter pool in an optical burst switched network,” in

*Proc. IEEE 17th Int. Conf. Telecommun. (ICT 2010)*, Doha, Qatar, Apr. 4–7, 2010, pp. 516–522. Download a copyF. S. EL-Khamy, M. Nasr, H. M. H. Shalaby, and H. T. Mouftah, “Evaluate the blocking performance for all optical wave-length routed WDM networks with and without wavelength converters using the iterative path decomposition algorithm,”

*6th International Symposium on High Capacity Optical Networks and Enabling Technologies (HONET 2009)*, Alexandria, Egypt, December 28–30, 2009, pp. 22–29. Download a copyM. H. S. Morsy, M. Y. S. Sowailem, and H. M. H. Shalaby, “Contention resolution in optical burst switched networks using spectral-amplitude-coding optical code division multiple access,” in P

*roc. IEEE Global Telecommun. Conf. (GLOBECOM 2009, ONS),*Honolulu, HI, Nov. 30–Dec. 4, 2009, pp. 1–7. Download a copyT. Eltaif, H. M. H. Shalaby, S. Shaari, and M. M. N. Hamarsheh, “Analysis of spectral amplitude coding OCDMA successive interference cancellation scheme,” in

*Proc. 8th Pacific Rim Conference on Lasers and Electro-Optics (CLEO/Pacific Rim 2009)*, Shanghai, China, Aug. 30–Sept. 3, 2009, pp. 1–2. Download a copyF. S. EL-Khamy, M. Nasr, H. M. H. Shalaby, and H. T. Mouftah, “The performance for heuristic algorithms for virtual topology design in all optical WDM networks,” in

*Proc. 11th Int. Conf. on Transparent Optical Networks (ICTON 2009)*, Azores, Portugal, June 28–July 2, 2009, pp. Mo.B3.6(1–4). Download a copyT. Eltaif, H. M. H. Shalaby, S. Shaari, and M. M. N. Hamarsheh, “Interference mitigation using successive interference cancellation in optical CDMA systems,” in

*Proc. The 8th WSEAS Int. Conf. on Microelectronics, Nanoelectronics, Optoelectronics (MINO ’09)*, Istanbul, Turkey, May 30–June 1, 2009, pp. 77–81. Download a copyT. Eltaif, H. M. H. Shalaby, S. Shaari, and M. M. N. Hamarsheh, “Performance analysis of successive interference cancellation with modified quadratic congruence and Hadamard codes for optical CDMA,” in

*Proc. IEEE 11th Int. Conf. on Adv. Commun. Tech. (ICACT 2009)*, Phoenix Park, Korea, Feb. 15–18, 2009, pp. 1885–1889. Download a copyM. H. S. Morsy, M. Y. S. Sowailem, and H. M. H. Shalaby, “An enhanced mathematical model for performance evaluation of optical burst switched networks,” in

*Proc. IEEE Global Telecommun. Conf. (GLOBECOM 2008, ONS)*, New Orleans, LA, Nov. 30–Dec. 4, 2008, pp. 1–5. Download a copyR. Raad, E. Inaty, P. Fortier, and H. M. H. Shalaby, “Time-slotted optical OV-CDMA network using a fair QoS-based resource management algorithm,” in

*Proc. IEEE Global Telecommun. Conf. (GLOBECOM 2008, ONS)*, New Orleans, LA, Nov. 30–Dec. 4, 2008, pp. 1–6. Download a copyK. Puntsri, S. Sittichivapak, and H. M. H. Shalaby, “Throughput/delay analysis of spectrally phase-encoded optical CDMA over WDM networks,” in

*Proc. The 14th Asia-Pacific Conf. Commun. (APCC 2008)*, Akihabara, Tokyo, Japan, Oct. 14–16, 2008, pp. 1–5. Download a copyK. Puntsri, S. Sittichivapak, and H. M. H. Shalaby, “Performance Analysis of SPE-OCDMA over WDM Networks,” in

*Proc. Fifth Int. Conf. Elect. Eng., Comp., Telecommun., and Inform. Tech. (ECTI-CON 2008)*, Krabi, Thailand, May 14–17, 2008, pp. 345–348. Download a copyE. E. Bedeer, H. M. H. Shalaby, E. A. El-Badawy, and S. A. Khamis, “A modified heuristic approach of logical topology design in WDM optical networks,” in

*Proc. Int. Conf. Comp. Commun. Eng. (ICCCE 2008)*, Kuala Lumpur, Malaysia, May 13–15, 2008, pp. 662–666. Download a copyT. Eltaif, H. M. H. Shalaby, S. Shaari, and M. M. N. Hamarsheh, “Analysis of successive interference cancellation scheme using OOC code in optical CDMA systems,” in

*Proc. IEEE 10th Int. Conf. on Adv. Commun. Tech. (ICACT 2008)*, Phoenix Park, Korea, Feb. 17–20, 2008, pp. 2023–2026. Download a copyE. Inaty, R. Raad, P. Fortier, and H. M. H. Shalaby, “MAC protocols for multirate OV-CDMA system in optical packet network: A comparative approach,” in

*Proc. IEEE Int. Conf. Signal Proc. and Commun. (ICSPC 2007)*, Dubai, United Arab Emirates, Nov. 24–27, 2007, pp. 1103–1106. Download a copyT. Eltaif, H. M. H. Shalaby, S. Shaari, and M. M. N. Hamarsheh, “Performance analysis of successive interference cancellation scheme for optical CDMA systems using modified prime sequence codes,” in

*Proc. SPIE/COS Photonics Asia 2007*, Beijing, China, Nov. 11–15, 2007, pp. 68370Y(1–8). Download a copyR. Raad, E. Inaty, P. Fortier, and H. M. H. Shalaby, “Hybrid power/overlap allocation scheme for a multirate overlapped optical CDMA system,” in

*Proc. IEEE Int. Conf. Commun. (ICC 2007)*, Glasgow, Scotland, June 24–28, 2007, pp. 2115–2121. Download a copyT. Eltaif, H. M. H. Shalaby, and S. Shaari, “A novel successive interference cancellation scheme in OCDMA system,” in

*Proc. IEEE Int. Conf. on Semiconductor Electronics (ICSE ’06)*, Kuala Lumpur, Malaysia, Nov. 29–Dec. 1, 2006, pp. 299–303. Download a copyZ. A. El-Sahn, Y. M. Abd-El-Malek, H. M. H. Shalaby, and E. A. El-Badawy, “The R3T optical random access CDMA protocol with queuing subsystem,” in

*Proc. The 10th World Multi-Conference on Systemics, Cybernetics and Informatics (WMSCI 2006)*, Orlando, Florida, USA, July 16–19, 2006, pp. 18–23.Y. M. Abd-El-Malek, Z. A. El-Sahn, H. M. H. Shalaby, and E. A. El-Badawy, “Proposal of an optical CDMA random access protocol,” in

*Proc. The10th World Multi-Conference on Systemics, Cybernetics and Informatics (WMSCI 2006)*, Orlando, Florida, USA, July 16–19, 2006, pp. 1–6.M. A. A. Mohamed, H. M. H. Shalaby, and E. A. El-Badawy, “On optical CDMA MAC protocols,” in Proc.

*The 2006 IEEE Int. Symp. on Circuits and Systems (ISCAS 2006)*, Island of Kos, Greece, May 21–24, 2006, pp. 1836–1839. Download a copyA. G. Elmeligy, M. S. El-Sowehy, H. M. H. Shalaby, and E. A. El-Badawy, “Analysis of static/dynamic 2D optical CDMA correlation and chip-level receivers under both shot and thermal noises,” in

*Proc. Int. Conf. on Comp. and Commun. Engineering (ICCCE ’06)*, Kuala Lumpur, Malaysia, May 9–11, 2006, pp. 815–823.R. Raad, E. Inaty, P. Fortier, and H. M. H. Shalaby, “Optical S-ALOHA/CDMA system for multirate applications: System architecture and performance evaluation,” in

*Proc. IEEE Global Telecommun. Conf. (GLOBECOM ’05)*, St. Louis, Missouri, Nov. 28–Dec. 2, 2005, pp. 1936–1941. Download a copyM. M. N. Hamarsheh, M. K. Abdullah, S. Khatun, and H. M. H. Shalaby, “Wavelength modulation encoding optical code division multiple access communication system,” in

*Proc. MMU International Symposium on Information and Communications Technologies 2005 (M2USIC’ 05)*, Petaling Jaya, Malaysia, Nov. 24–25, 2005, TS08, pp. 9–11.M. M. N. Hamarsheh, M. K. Abdullah, M. A. Mahdi, S. Khatun, and H. M. H. Shalaby, “Performance enhancement of a dynamic code division multiple access communication system by signal clipping,” in

*Proc. IEEE Malaysia International Conference on Communications and IEEE International Conference on Networks (MICC & ICON’05)*, Kuala Lumpur, Malaysia, Nov. 16–18, 2005, pp. 781–784. Download a copyM. M. N. Hamarsheh, M. K. Abdullah, M. A. Mahdi, S. Khatun, and H. M. H. Shalaby, “Dynamic optical code division multiple access communication system analysis and performance enhancement by signal clipping,” in

*Proc. 1st International Conference on Computers, Communications, and Signal Processing (CCSP ’05)*, Kuala Lumpur, Malaysia, Nov. 14–16, 2005, pp. 125–129. Download a copyM. M. N. Hamarsheh, M. K. Abdullah, M. A. Mahdi, S. Khatun, and H. M. H. Shalaby, “New coding scheme for code-division multiple-access communication system,” in

*Proc. The 11th Asia-Pacific Conference on Communications (APCC 2005)*, Perth, Western Australia, Oct. 3–5, 2005.M. M. N. Hamarsheh, M. K. Abdullah, M. A. Mahdi, S. Khatun, and H. M. H. Shalaby, “Novel coding technique for code-division multiple-access communication system,” in

*Proc. International Conference on Instrumentation Communication, and Information Technology (ICICI 2005)*, Bandung, Indonesia, Aug. 3–5, 2005, pp. 252–257. Download a copyM. M. Ali, M. H. Aly, and H. M. H. Shalaby, “Wavelength reservation and traffic loading in optical burst switching network design: A comparison between different techniques,” in

*Proc. Third Saudi Tech. Conf. & Exhibition*, Riyadh, Saudi Arabia, Dec. 11–15, 2004, pp. 272–279.A. G. Elmeligy, M. S. El-Sowehy, H. M. H. Shalaby, and E. A. El-Badawy, “Analysis of 2D optical CDMA correlation and chip level receivers under both shot and thermal noises,” in

*Proc. The 8th World Multiconference on Systemics, Cybernetics and Informatics (SCI 2004),*Orlando, USA, July 18–21, 2004, pp. 121–123.M. A. A. Mohamed, H. M. H. Shalaby, and E. A. El-Badawy, “Optical CDMA protocol with selective retransmission,” in

*Proc. Ninth IEEE Symp. on Computers and Communications (ISCC 2004)*, Alexandria, Egypt, June 29–July 1, 2004, pp. 621–626. Download a copyH. M. H. Shalaby, “A proposal of an optical CDMA random access protocol,” in

*Proc. IEEE Int. Conf. Commun. (ICC 2004)*, Paris, France, June 20–24, 2004, pp. 1709–1713. Download a copyE. Inaty, H. M. H. Shalaby, and P. Fortier, “Multi-class/multi-rate overlapped optical FFH-CDMA system: SIR performance evaluation and cutoff rates analysis,” in

*Proc. IEEE Int. Conf. Commun. (ICC 2004)*, Paris, France, June 20–24, 2004, pp. 1714–1719. Download a copyM. A. A. Mohamed, H. M. H. Shalaby, and E. A. El-Badawy, “Variable-size sliding window optical CDMA MAC protocol,” in

*Proc. The 46th IEEE Int. Midwest Symp. on Circuits and Systems (MWSCAS ’03)*, Cairo, Egypt, Dec. 27–30, 2003, pp. 496–500. Download a copyA. G. Elmeligy, M. S. El-Sowehy, H. M. H. Shalaby, and E. A. El-Badawy, “Effect of both shot and beat noises on the performance of a 2-D optical CDMA correlation receiver,” in

*Proc. The 46th IEEE Int. Midwest Symp. on Circuits and Systems (MWSCAS ’03),*Cairo, Egypt, Dec. 27–30, 2003, pp. 1009–1011. Download a copyH. M. H. Shalaby, “Optical CDMA random access protocols,” in

*Proc. Eighth IEEE Symp. on Computers and Communications (ISCC ’03)*, Antalya, Turkey, June 30–July 3, 2003, pp. 907–912. Download a copyE. Inaty, H. M. H. Shalaby, and P. Fortier, “On the cutoff rate of a variable-bit-rate (VBR) OFFH-CDMA system,” in

*Proc. IEEE Int. Conf. Commun. (ICC ’02)*, New York, NY, Apr. 28–May 2, 2002, pp. 2927–2932. Download a copyE. Inaty, H. M. H. Shalaby, and P. Fortier, “A new transmitter-receiver architecture for noncoherent multirate OFFH-CDMA system with fixed optimal detection threshold,” in

*Proc. IEEE Global Telecommun. Conf. (GLOBECOM ’01)*, San Antonio, Texas, Nov. 25–29, 2001, pp. 1487–1493. Download a copyX. Zhou, H. M. H. Shalaby, C. Lu, P. Shum, and T. H. Cheng, “Theoretical investigation of fiber Raman amplifier with dynamic gain control,” in

*Proc. IEEE/OSA Opt. Fiber Commun. Conf. (OFC ’01)*, Anaheim, California, Mar. 17–22, 2001, pp. wdd17-1–wdd17-3. Download a copyX. Zhou, C. Lu, P. Shum, H. M. H. Shalaby, and T. H. Cheng, “Dynamic gain control for discrete Raman fiber amplifier,” in

*Proc. IEEE Conf. on Lasers and Electro-Optics (CLEO ’01)*, 2001, pp. 144–145. Download a copyH. M. H. Shalaby, “The Capacities of Optical CDMA communication channels with different code-correlation constraints,” in

*Proc. IEEE Sixth Int. Symp. on Spread Spectrum Techniques & Applications (ISSSTA ’00)*, New Jersey, Sept. 6–8, 2000, pp. 179–183. Download a copyX. Zhou, H. M. H. Shalaby, and C. Lu, “Design and performance analysis of a new code for spectral-amplitude-coding optical CDMA systems,” in

*Proc. IEEE Sixth Int. Symp. on Spread Spectrum Techniques & Applications (ISSSTA ’00)*, New Jersey, Sept. 6–8, 2000, pp. 174–178. Download a copyH. M. H. Shalaby, “Throughput and efficiency capacities of optical OOK-CDMA communication systems,” in

*Proc. Fifth IEEE Symp. on Computers and Communications (ISCC ’00)*, Antibes, France, July 4–6, 2000, pp. 711–716. Download a copyH. M. H. Shalaby, “Complexity and performance comparisons between optical OOKCDMA chip-level receivers and double-optical-hardlimiters correlation receivers,” in

*Proc. IEEE/OSA Opt. Fiber Commun. Conf. (OFC ’00)*, Baltimore, Maryland, Mar. 5–10, 2000, pp. 347–349. Download a copyH. M. H. Shalaby, “Optimum characterization of the maximum users size in optical PPM-CDMA communication systems,”in

*Proc. Int. Conf. on Information, Communications & Signal Processing (ICICS ’99)*, Singapore, Dec. 7–10, 1999.H. M. H. Shalaby, “Chip-level receivers in optical overlapping PPM-CDMA,” in

*Proc. IEEE Fifth Int. Symp. on Spread Spectrum Techniques & Applications (ISSSTA ’98)*, Sun City, South Africa, Sept. 2–4, 1998, pp. 907–911. Download a copyH. M. H. Shalaby, “Optical CDMA with overlapping PPM,” in

*Proc. IEEE Int. Conf. Commun. (ICC ’98)*, Atlanta, Georgia, June 7–11, 1998, pp. 1274–1278. Download a copyH. M. H. Shalaby and E. A. El-Badawy, “A characterization of the users strength in optical PPM-CDMA channels,” in

*Proc. 1998 Int. Wireless and Telecommun. Symp. (IWTS ’98)*, Shah Alam, Malaysia, May 11-15, 1998, pp. 296–299.H. M. H. Shalaby, M. A. Mangoud, and S. Elkhamy, “A new interference cancellation technique for synchronous CDMA communication systems using modified prime codes,” in

*Proc. IEEE Symp. on Computers and Communications (ISCC ’97)*, Alexandria, Egypt, July 1–3, 1997, 556–560. Download a copyH. M. H. Shalaby, “Maximum achievable number of users in optical PPM-CDMA,” in

*Proc. 1997 Int. Symp. Inform. Theory (ISIT ’97)*, Ulm, Germany, June 29–July 4, 1997. Download a copyH. M. H. Shalaby, “Modified prime sequences in optical CDMA interference cancellation,” in

*Tech. Prog. 1997 Int. Wireless and Telecommun. Symp. (IWTS ’97)*, Shah Alam, Malaysia, May 14-16, 1997.H. M. H. Shalaby, “Optical CDMA with interference cancellation,” in

*Proc. IEEE Fourth Int. Symp. on Spread Spectrum Techniques & Applications (ISSSTA ’96)*, Mainz, Germany, Sept. 22–25, 1996, pp. 590–594. Download a copyM. A. Mangoud, H. M. H. Shalaby, and H. El-Sabagh, “Equal weight code sequence per slot for optical PPM-CDMA communication systems,” in

*Proc. IEEE Fourth Int. Symp. on Spread Spectrum Techniques & Applications (ISSSTA ’96)*, Mainz, Germany, Sept. 22–25, 1996, pp. 63–67. Download a copyM. Tayel, H. M. H. Shalaby, and H. Saleh, “Adaptive arabic handwritten letter recognition by a layered self-organization neural network,” in

*Tech. Prog. 1996 Midwest Symposium on Circuits and Systems*, Ames, Iowa, Aug. 18-21, 1996.H. M. H. Shalaby and E. A. Sourour, “Co-channel interference cancellation in optical synchronous CDMA communication systems,” in

*Proc. IEEE Third Int. Symp. on Spread Spectrum Techniques & Applications (ISSSTA ’94)*, Oulu, Finland, July 4–6, 1994, pp. 579–583. Download a copyH. M. H. Shalaby, “Performance comparison of number- and coherent-state optical CDMA in lossy direct-detection photon channels,” in

*Proc. IEEE Third Int. Symp. on Spread Spectrum Techniques & Applications (ISSSTA ’94)*, Oulu, Finland, July 4–6, 1994, pp. 574–578. Download a copyH. M. H. Shalaby, “Efficient use of overlapping PPM channels under practical constraints,” in

*Tech. Prog. Int. Conf. on Applications of Photonic Technology Sensing, Signal Processing, and Communications (ICAPT ’94)*, Ontario, Canada, June 21–23, 1994.H. M. H. Shalaby, “Capacity and cutoff rate for optical overlapping pulse-position modulation channels,” in

*Proc. IEEE Int. Conf. Commun. (ICC ’94)*, New Orleans, LA, May 1–5, 1994, pp. 670–674. Download a copyH. M. H. Shalaby, “Lower bounds on optical overlapping PPM channel capacity and efficient use of the channel under practical constraints,” in

*Tech. Prog. 28th Ann. Conf. Inform. Sci. Syst. (CISS ’94)*, Princeton, NJ, Mar. 16–18, 1994.H. M. H. Shalaby, “Performance analysis of optical CDMA communication systems with PPM signaling,” in

*Proc. IEEE Global Telecommun. Conf. (GLOBECOM ’93)*, Houston, Texas, Nov. 29–Dec. 2, 1993, pp. 1901–1905. Download a copyH. M. H. Shalaby, “Performance of uncoded overlapping PPM under communications constraints,” in

*Proc. IEEE Int. Conf. Commun. (ICC ’93)*, Geneva, Switzerland, May 23–26, 1993, pp. 512–516. Download a copyH. M. H. Shalaby, “Bounds on optical overlapping PPM channel capacity and efficient use of the channel under practical constraints,” in

*Tech. Prog. 1992 Bilkent Int. Conf. on Lightwave Technology and Communications (BILCON ’92)*, Ankara, Turkey, July 27–28, 1992.H. M. H. Shalaby and A. Papamarcou, “Error exponents for distributed detection with feedback,” in

*Proc. 1991 Int. Symp. on Inform. Theory (ISIT ’91)*, Budapest, Hungary, June 23–29, 1991. Download a copyH. M. H. Shalaby and A. Papamarcou, “Error exponents for distributed detection of Markov sources,” in

*Proc. 25th Ann. Conf. Inform. Sci. Syst. (CISS ’91)*, Baltimore, MD, Mar. 20–22, 1991, pp. 293–298.H. M. H. Shalaby and A. Papamarcou, “A converse theorem for a class of multiterminal detection problems,” in

*Proc. 1990 Int. Symp. Inform. Theory (ISIT ’90)*, San Diego, USA, Jan. 14–19, 1990.E. A. El-Badawy, E. A. Youssef, and H. M. H. Shalaby, “PPM performance using a concatenated code over an optical RF-relay Link,” in

*Tech. Prog. 1985 Annual Meeting of the Optical Society of America*, Washington D.C., Oct. 14–18, 1985.

Second: Selected Conference Papers

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