Ayman
Elezabi

Position
Associate Professor
Department
Department of Electronics and Communications Engineering

Profile

Brief Biography

Ayman Elezabi is an associate professor, Electronics and Communications Engineering (ECNG) department at The American University in Cairo. His work falls primarily in the field of physical layer communications with an emphasis on wireless communications. Elezabi obtained his PhD in electrical and computer engineering with a graduate minor in computer science from North Carolina State University in 2000. He then joined BOPS Inc., NC, USA, a startup at the time, for about two years where he was responsible for implementing and benchmarking several wireline and wireless communication standards on multi-processing element DSP cores, and was part of the design team for an SOC implementation of 802.11a. Elezabi’s industry experience includes work at the IBM Cairo Scientific Center in Egypt, and at Analog Devices and Ericsson in the U.S. He also delivered training and consultations independently in the area of wireless communications for several companies in the U.S. and Egypt. Elezabi was an early contributor and principal consultant in one other startup, now Wasiela Inc. He has a combined industry experience of about 15 years. Elezabi has taught at several universities in Egypt and internationally. Since Fall 2003, he has been with The American University in Cairo. Elezabi was the founding graduate director of the MS and PhD programs in the ECNG department. Elezabi’s current research interests are signal processing for wireless communications, including implementation issues, cognitive radio with applications to rural connectivity, smart grids, and, more recently, he is exploring machine learning applications in healthcare and precision medicine. Elezabi’s work often includes industry involvement.

Selected Publications

  1. Shady ElBassiouny,  Ayman Elezabi, “Improved decoder likelihoods for 3G cellular uplink over asynchronous multi-path fading channels”, Proc. of IEEE VTC Fall 2016, Montreal, Canada, Sept 18 – 21, 2016.
  2. Ali Gaber, Karim Seddik,  Ayman Elezabi, “PMUs Placement with Max-Flow Min-Cut Communication Constraint in Smart Grids”, Proc. of IEEE WCNC, Doha, Qatar, April 2016.
  3. Mohamed Hany, Ayman Elezabi, Ahmed Shalash, “Low Complexity Timing Synchronization and Channel Estimation for DVB-T2 over Long Echo Channels”, Proceedings of 36th IEEE Sarnoff Symposium, Newark, NY, USA, Sept 20 – 22, 2015.
  4. Moustafa Medhat, Karim Seddik,  Ayman Elezabi, “Channel Estimation and Tracking Algorithms for Harsh Vehicle to Vehicle Environments”, Proceedings of IEEE Fall VTC 2015, Boston, MA, USA, Sept 6 – 9, 2015.
  5. Ali Gaber, Karim Seddik,  Ayman Elezabi, “Joint Estimation-Detection of Cyber Attacks in Smart Grids: Bayesian and Non-Bayesian Formulations”, Proceedings of IEEE WCNC, New Orleans, LA, USA, March 9-12, 2015.
  6. Ayman Elezabi, “Novel Architectures for Squares, and Sums of Squares, of Cross-correlations of Bipolar Sequences with Applications to CDMA”, Proceedings of 47th Annual Asilomar Conference on Signals, Systems, and Computers, U.S.A., Nov 3-6, 2013.
  7. Mohamed A. El-Aziz, Karim Seddik, Ayman Elezabi, Mohamed Nafie, “Performance and Complexity Comparison of Near-Optimal MIMO Decoders”, Proceedings of 47th Annual Asilomar Conference on Signals, Systems, and Computers, U.S.A., Nov 3-6, 20013.
  8. M. Abdelhakim, M. Nafie, A. Shalash and A. Elezabi, “Adaptive Bit Loading And Puncturing Using Long Single Codewords In OFDM Systems”, Wireless Personal Communications Journal (Springer), July 2013, vol 71, issue 2, pp. 1557-76. DOI 10.1007/s11277-012-0892-z.
  9. Mahmoud Elgenedy, Ayman Elezabi, Blind Symbol Rate Estimation using Autocorrelation and Zero Crossing Detection”, Proceedings of  IEEE International Conference on Communications, pp 4750-55, Budapest, Hungary, June 2013.
  10. Ahmed Bedewy, Karim Seddik,  Ayman Elezabi, “A Feedback-based Access Scheme for Cognitive Radio Networks Over Interference Channels with Primary Queue Guarantees”, Proceedings of 11th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt 2013), pp 420 – 427, Tsukuba Science City, Japan, May 13-17, 2013.
  11. Hatem Yousry, Ayman Elezabi, Fatma Newagy, Salwa El-Ramly, “Improved Periodogram-based Spectrum Sensing for Wireless FM Microphone Signals”, Proceedings of 18th International Conference on Telecommunications (ICT), Cyprus, May 2011.
  12. Ahmed AbdulKarim, Ayman Elezabi, Mohamed Nafie, “A Novel Scheme for Relay Cooperation in Interweave Cognitive Radio Systems”, Proceedings of Cogart 2010 (co-hosted and published under International Symposium on Applied Sciences in Biomedical and Communication Technologies (ISABEL)), Rome, Italy, November 2010.
  13. Ayman Elezabi, Mohamed Kashef, Mohamed Abdallah, Mohamed Khairy, ”CDMA Underlay Network with Cognitive Interference-Minimizing Code Assignment and Semi-Blind Interference Suppression”, Journal on Wireless Communications and Mobile Computing (Special Issue on Cognitive Radio and Advanced Spectrum Management), November 2009, vol. 9, issue 11, pp. 1460 – 1471,  DOI:10.1002/wcm.724.
  14. Karim Morsi, Fadel Digham, Mohamed Nafie, Ayman Elezabi, “Cross-Layer Adaptive Resource Allocation Algorithm for Wireless Communication Networks”, Proceedings of IEEE Globecom Conference, New Orleans, LA, U.S.A..,  November 30 – December 4, 2008.

Selected Patents

Selected Invited Lectures

Courses Taught (at AUC)

  • EENG 431 Fundamentals of Communications
  • EENG 435 Advanced Digital Communications
  • EENG 480 Special Problems in Electronics Engineering  
  • EENG 494 Selected Topics in Electronics Engineering  
  • ECNG 439L Communications Lab
  • ECNG 436 Mobile Communication Systems
  • ECNG 420 Fundamentals of Communications I
  • ECNG 421 Fundamentals of Communications II
  • ECNG 218L Digital Logic Design Lab
  • ECNG 490 Senior Project I
  • ECNG 491 Senior Project II
  • ECNG 497 Industrial Internship
  • ECNG 522/5230 Stochastic Processes for Engineers
  • ECNG 520/5231 Advanced Digital Communications
  • ECNG 594/5930 Advanced Topics in Electronics and Communications Engineering

Research Interests

  • Signal processing for wireless communications
  • Low-complexity receiver algorithms
  • Interference suppression for wireless systems
  • Cognitive radio
  • Smart grids