- M. Sokar and K. Elsayed, A Resource
Allocation Scheme for the IEEE 802.16 band-AMC Mode with QoS
Provisioning.

- W. Ghamry, K. Elsayed and A. Nassar,
On the Interplay of Network Structure and Routing Strategies for
Performance and Robustness in Scale-Free Networks.

- S. Shoukry, K. Elsayed, A. Moghazy,
and A. Nassar, Utility Based Channel Aware MIMO Downlink Scheduling in
IEEE 802.16 Broadband Wireless System.

- S. Shoukry, K. Elsayed, A. Moghazy,
and A. Nassar, Dynamic Downlink Radio Resource Management in
Multi-cell IEEE 802.16e Systems.

- A. Elokda and K. Elsayed, An Augmented Integrated Routing Algorithm for Routing Bandwidth-Guaranteed Connections in IP/MPLS over WDM Networks.

- W. Ghamry amd K. Elsayed, Network Design
Methods for Mitigation of Intentional Attacks in Scale-Free Networks,
to
appear,
Springer
Telecommunication
Systems Journal.

- A. Saad, K. Elsayed and S. Ahmed, Enhanced Optimal and Heuristic Solutions of the
Routing Problem in Light-Trail Networks, Springer Photonic Network
Communications, to appear, 2008.

- K. Elsayed and A. Khattab, Channel-Aware Earliest Deadline Due
Fair Scheduling for Wireless Multimedia Networks, Springer/Kluwer
Journal on Wireless Personal Communications, vol. 38, July 2006.

- K. Elsayed, A
Framework for End-to-End Deterministic-Delay Service Provisioning in
Multiservice Packet Networks, IEEE Trans. on
Multimedia, June 2005.

- K. Elsayed, Dynamic
Routing,
Wavelength,
and
Fiber
Assignment
in
Multi-Fiber
WDM Grooming
Networks, IEE Proceedings-Communications, Feb. 2005.

- K. Elsayed, A. Saad, and M. El-Hadidi, Performance Evaluation of Resource Reservation Policies for Rate-Controlled Earliest-Deadline-First Scheduling in Multi-Service Packet Networks, Telecommunication Systems Journal (Kluwer Academic Publishers), Volume 26, Issue 1, pp. 69-92, May 2004.
- K. Elsayed and O. Hindy, A Measurement-based Call Admission Control Scheme for ATM Networks Based on the Diffusion Approximation, Elsevier Computer Communication, vol. 26, issue 6, 2003.
- K. Elsayed, A. Saad, and M. El-Hadidi, Performance Evaluation of Resource Allocation and Call Admission Policies for Deterministic Services in PGPS-based Packet Networks, Elsevier Computer Communications, Vol. 25, pp. 1513-26, Nov. 2002.
- K. Elsayed, N. Gerlich, and P. Tran-Gia, Efficient Design of Voice Carrying Fixed-Network Links in CDMA Mobile Communication Systems, Telecommunication Systems Journal (Kluwer Academic Publishers), Vol. 17(1), pp. 9-29, May 2001.
- M. El-Hadidi, K. Elsayed,
and M. Abdallah, Performance
Analysis and Estimation of Call Admission Control Parameters in
Wireless
Integrated Voice and Data Networks, European Transactions on
Telecommunications,
Vol. 11, pp. 327-343, July/August 2000.

- K. Elsayed and H. G. Perros, Comparative Performance Analysis of Call Admission Control Schemes in ATM Networks,In Performance Evaluation and Application of ATM Networks, Edited by D. Kouvatsous, Kluwer Academic Publishers, pp. 113-140, 2000.
- K. Elsayed and H. G. Perros, The Superposition of Discrete-time Markov Renewal Processes with an Applications to Statistical Multiplexing of Bursty Traffic Sources, Journal of Applied Mathematics and Computation (Kluwer Academic Publishers), pp. 43-62, 2000.
- K. Elsayed and H. G. Perros, Analysis of an ATM Statistical
Multiplexer with Heterogeneous Markovian On/Off Sources and
Applications
to Call Admission Control, Journal of High Speed Networks, vol. 6
no.
2, pp. 123-139, 1997.

- K. Elsayed and H. G. Perros, Traffic Management: A Review of Call Admission Control Schemes for ATM Networks,Invited Paper, Froehlich/Kent Encyclopedia of Telecommunications, Marcel Dekker, pp. 75-88, 1998.
- H. G. Perros and K. Elsayed, Call Admission Control Schemes: A Review, IEEE Communications Magazine, pp. 82-91, November 1996.
- M. Moustafa and K. Elsayed, Matrix-Geometric Solution of a Multi-Server Queue with Markovian Group Arrivals and Coxian Service, Applied Mathematics and Computation, vol. 49, pp. 177-196, April 1992.
- K. Elsayed and M. Moustafa, Analysis of the M[x] /Ck/1 Queueing System, Advances in Modeling and Simulation, vol. 24, no. 3, pp. 13-29, 1991.
- K. Elsayed and M. Moustafa, Matrix-geometric Solution of a Single-server Queue with Group Arrivals and Phase-type Service, Alexandria University Engineering Journal, vol. 30, no. 3, pp. 59-68, 1991.

- T. Ismail, H. Hamza and K. Elsayed, An Enhanced OPS Architecture with
Optical Buffers, Proc. of HONET, 2009.

- W. Ghamry and K. Elsayed, On the Interplay of Network
Structure and Routing Strategies for Performance in Scale-Free Networks,
Proc.
of
HONET,
2009.

- S. Shukry and K. Elsayed, Adaptive fractional frequency reuse (AFFR)
scheme for multi-cell IEEE 802.16e systems, Proc. of HONET, 2009.

- M. Sokar, K. Elsayed, H. Abdallah, An Efficient QoS-based Uplink
Scheduling Scheme for IEEE 802.16e Mobile Stations, Proc. of IEEE
WCNC, 2009.

- W. Ghamry, K. Elsayed, and A. Nassar, A New Small-World Rewiring Method
for Construction of Heuristically Optimized Trade-Offs Router
Network Topologies, Proc. of IEEE WOCN, 2009.

- S. Shoukry, K. Elsayed, A. Moghazy,
Amin Nassar, Utility Based Channel Aware MIMO Downlink Scheduling in
IEEE 802.16 Broadband Wireless System, 6th International
Conference on Electrical Engineering, Cairo, Egypt 2008.

- A. Saad, K. Elsayed and S. Ahmed, Enhanced Optimal and Heuristic Solutions of the
Routing Problem in Light Trail Networks, Proc. of IEEE High
Performance Routers and Switches (HSPR), 2007.

- Z. Wali, K. Elsayed, and A-K. Hassan, Static RWA in
All-Optical Network under Multifiber Multiple Requests Assumption,
Proceedings of the IEEE ICEEC, Nov. 2006.

- A. Khattab and K. Elsayed, Opportunistic Scheduling of Delay Sensitive Traffic
in OFDMA-based Wireless Networks, Proc. IEEE WoWMoM, June 2006.

- S. Mohamed and K. Elsayed, Distributed Explicit Partial Rerouting (DEPR)
Scheme for Load Balancing in MPLS Networks, Proc. IEEE ISCC, June
2006.

- A. Saad, K. Elsayed, S. Al Ola, Efficient Solution of the Traffic Grooming
Problem in Light-Trail Optical Networks, Proc. IEEE ISCC, June 2006.

- A. Khattab and K. Elsayed, Opportunistic Subcarrier Management for Delay
Sensitive Traffic in OFDMA-based Wireless Multimedia Networks,
Proceedings of the IST Mobile Summit, June 2005.

- A. Khattab and K. Elsayed, Channel-Aware Scheduling Schemes with
Statistical Delay-Bound Guarantees in Wireless Multimedia Networks,
ACM/IEEE MSWiM, Oct. 2004.

- K. Elsayed, HCASP: A Hop-Constrained Adaptive
Shortest-Path Algorithm for Routing Bandwidth-Guaranteed
Tunnels in MPLS Networks, Proceedings
of
the
Ninth
IEEE
Symposium on Computers and Communications,
pp. , June 2004. (The paper received co-best paper award from the
conference. Check the award pictures here.)

- K. Elsayed, H. Fadel, A. Nassar, LMPS: Localized Multi-Path Selection for QoS
Routing in VoIP Networks, Proceeding of IFIP Networking 2004, May
2004.

- K. Elsayed, A. Saad, and M. El-Hadidi,
Evaluation
of Resource Reservation Policies for Deterministic Services in
Multi-Service
Packet Networks, Proceedings of the 18th ITC conference, Aug. 2003.

- A. Saad, M. El-Hadidi and K. Elsayed, Resource Division Policies for EDF Scheduling in ATM Networks, Proceedings of IEEE International Symposium on Computers and Communications, pp. 249-254, July 2001.
- A. Saad and K. Elsayed and M. El-Hadidi, Performance Evaluation of Resource Division Policies for PGPS Scheduling in ATM Networks, Proceeding of IFIP Networking 2000, pp. 714-726, May 2000.
- Amr Saad, K. Elsayed, M. El-Hadidi Local Resource Allocation for Providing End to End Delay Guarantees in ATM Networks Using PGPS Scheduling, Proceedings of Mascot'99, pp. 300-37, 1999.
- Mohamed Abdallah, M. El-Hadidi, K. Elsayed, Effect of User Mobility on the QoS Parameters for the Guard Channel Policy, Proceedings of IEEE Wireless Communications and Networking Conference 1999, pp. 1503-1507, Sep. 1999.
- Mohamed Abdallah, M. El-Hadidi, K. Elsayed, Performance Analysis and Estimation of Call Admission Policy Parameters for Multiple Traffic Classes in Wireless ATM Networks, Proceedings of IEEE ICC99, pp. 404-410, June 1999.
- K. Elsayed, Enhancing the end-to-end Schedulability Conditions of EDF Scheduling for Real-Time Applications, Proceedings of IEEE ATM'98 Workshop, pp. 75-79, May 1998.
- K. Elsayed, Key Technologies for the next-generation Internet, Proceedings of the 6th International Conference on Artificial Intelligence and Applications, Feb. 1998.
- K. Elsayed, Overload Performance of Media-Access Control Protocols for Metropolitan Area Networks, Proceedings of IEEE ICECS 97, pp. 59-63, Dec. 1997.
- K. Elsayed, Dimensioning of Communication Links for Base-station and MSC Interconnection in CDMA Mobile Communication Systems, Proceedings of IEEE ISCC 97, pp. 631-635, July 1997.
- N. Gerlich, K. Elsayed, and P. Tran-Gia, Performance Analysis of Link Carrying Capacity in CDMA Systems, Proceeding of the 15th International Teletraffic Congress (ITC15), pp. 1159-1168, June 1997.
- K. Elsayed and H. Perros, Statistical Multiplexing with Arbitrary on/off Sources, Proceedings of IEEE IPCCC'96, pp. 487-493, March 1996.
- K. Elsayed and H. Perros, On the Effective Bandwidth of Arbitrary on/off Sources. Proceedings of IFIP PCN'95, pp. 257-271, Oct. 1995.
- K. Elsayed and H. Perros, An Efficient Algorithm for Characterizing the Superposition of Multiple Heterogeneous Interrupted Bernoulli Processes, Proceedings of the Second International Workshop on Numerical Solution of Large Markov Chains, pp. 443-462, Jan. 1995.
- K. Elsayed, On the Superposition of Discrete-time Markov Renewal Processes and Applications to Statistical Multiplexing of Bursty Traffic Sources. Proceeding of IEEE GLOBECOM'94, 1994
- K. Elsayed, Parallel Algorithms
for the Orthogonal Multiprocessor, Proceedings
30th Annual ACM Southeast Conference, Raleigh, NC, 1992.

- M. Lerner and K. Elsayed, Scalability and Policy for the Services-Enabled Internet, IEEE Communications Magazine, May 2002.
- K. Elsayed and M. Lerner, Direction in Wireless and Optical Transport II, IEEE Communications Magazine, July 2001.
- K. Elsayed and M. Lerner, Direction in Wireless and Optical Transport I, IEEE Communications Magazine, Jan. 2001.
- K. Elsayed and M. Lerner,
Topics in Internet Technology,
IEEE
Communications
Magazine, May 2000.

- K. Elsayed, Performance Analysis of Statistical Multiplexing and
Call Admission
Control in ATM Networks, Ph.D. Thesis, Departments of Comp. Science and
Elec. and Comp. Eng., North Carolina State University, USA, 1995.

- K. Elsayed, H. Perros, and R. Onvural, Analysis of a Tree-like
Configuration
of Finite Capacity Queues with Multiple Classes, IBM Technical Report
TR
29.1483, IBM, Research Triangle Park, NC, September 1992.

- K. Elsayed, Analysis of Queues with Markovian Group Arrivals and Phase-Type Service, M.Sc. Thesis, Faculty of Engineering, Cairo University, 1990.

- K. Elsayed, Telecommunication Evolution in Egypt, IEEE Global Communications Newsletter, Jan. 2001.
- K. Elsayed, Mobile Communications in Egypt, IEEE Global
Communications
Newsletter, June 1999.

- A Detailed Study of the Performance of the Guard Channel Policy in a High-Way User Mobility Environment, Mobile Computing Workshop, Cairo University, July 2001.
- Quality of Service in Wireless Multimedia Networks, Etisalat College of Engineering, Sharjah, UAE, Feb. 1999.
- Wireless Local Loops: Technology, Deployment, and Economics, IEEE-Egypt, Communications Sections, April 1998.
- Key Technologies for the next-generation Internet, National Telecommunications Institute, Cairo, Egypt, February 1998.
- Statistical Multiplexing with Arbitrary On/Off Sources, Bell-Northern Research/Nortel INC., Dallas, TX, USA, December 1994.
- Performance Analysis of Statistical Multiplexing in ATM Networks, IBM T. J. Watson Research Center, Hawthorne, NY, USA, November 1994.
- Call Admission Control in ATM Networks, Bell-Northern
Research/Nortel INC.,
Ottawa, Canada, October 1994.