Robust adaptive beamforming based on the Kalman filter. - Amr El-Keyi; Thiagalingam Kirubarajan; Alex B. Gershman (IEEE Trans. Signal Process., 2005)

A State-Space Approach to Robust Multiuser Detection. - Amr El-Keyi; Thiagalingam Kirubarajan; Alex B. Gershman (IEEE Trans. Wirel. Commun., 2007)

Cooperative MIMO-beamforming for multiuser relay networks. - Amr El-Keyi; Benoît Champagne 001 (ICASSP, 2008)

Adaptive beamspace focusing for direction of arrival estimation of wideband signals. - Amr El-Keyi; Thia Kirubarajan (Signal Process., 2008)

A Subspace Method for the Blind Identification of Multiple Time-Varying FIR Channels. - Benoît Champagne 001; Amr El-Keyi; Chao-Cheng Tu (GLOBECOM, 2009)

Adaptive Training-Based Collaborative MIMO Beamforming for Multiuser Relay Networks. - Amr El-Keyi; Benoît Champagne 001 (VTC Spring, 2009)

Collaborative Uplink Transmit Beamforming With Robustness Against Channel Estimation Errors. - Amr El-Keyi; Benoît Champagne 001 (IEEE Trans. Veh. Technol., 2009)

Robust broadband adaptive beamforming using convex optimization. - Michael Rübsamen; Amr El-Keyi; Alex B. Gershman; Thia Kirubarajan (Convex Optimization in Signal Processing and Communications, 2010)

Power Control for Constrained Throughput Maximization in Spectrum Shared Networks. - John Tadrous; Ahmed K. Sultan; Mohammed Nafie; Amr El-Keyi (GLOBECOM, 2010)

Propagation Modeling for Accurate Indoor WLAN RSS-Based Localization. - Kareem El-Kafrawy; Moustafa Youssef 001; Amr El-Keyi; Ayman F. Naguib (VTC Fall, 2010)

Power Control for Maximum Throughput in Spectrum Underlay Cognitive Radio Networks - John Tadrous; Ahmed K. Sultan; Mohammed Nafie; Amr El-Keyi (CoRR, 2010)

Adaptive linearly constrained minimum variance beamforming for multiuser cooperative relaying using the kalman filter. - Amr El-Keyi; Benoît Champagne 001 (IEEE Trans. Wirel. Commun., 2010)

Kalman filter-based tracking of a device-free passive entity in wireless environments. - Moustafa Anwar Seifeldin; Amr Fawzy El-Keyi; Moustafa Amin Youssef (WiNTECH, 2011)

Impact of the human motion on the variance of the received signal strength of wireless links. - Kareem El-Kafrawy; Moustafa Youssef 001; Amr El-Keyi (PIMRC, 2011)

Joint power allocation and beamforming for multiuser MIMO two-way relay networks. - Mohammad Khafagy; Amr El-Keyi; Tamer A. ElBatt; Mohammed Nafie (PIMRC, 2011)

Multiuser MIMO relaying under quality of service constraints. - Mohamed Fadel; Amr El-Keyi; Ahmed K. Sultan (WCNC, 2011)

A New Achievable DoF Region for the 3-user MxN Symmetric Interference Channel - Mohamed Amir; Amr El-Keyi; Mohammed Nafie (CoRR, 2011)

Constrained Interference Alignment and the Spatial Degrees of Freedom of MIMO Cognitive Networks. - Mohamed Amir; Amr El-Keyi; Mohammed Nafie (IEEE Trans. Inf. Theory, 2011)

Cross-layer transmission rate/power policy for cognitive multi-access networks with imperfect sensing. - Ghada Saleh; Amr El-Keyi; Mohammed Nafie (ACSCC, 2012)

A minimum-delay cross-layer transmission policy for cognitive multi-access networks with imperfect sensing. - Ghada Saleh; Amr El-Keyi; Mohammed Nafie (GLOBECOM, 2012)

Degrees of freedom for separated and non-separated half-duplex cellular MIMO two-way relay channels. - Mohammad Khafagy; Amr El-Keyi; Mohammed Nafie; Tamer A. ElBatt (ICC, 2012)

A new achievable DoF region for the 3-user M × N symmetric interference channel. - Mohamed Khalil; Amr El-Keyi; Mohammed Nafie (ICC, 2012)

MIMO VANETs: Research challenges and opportunities. - Amr El-Keyi; Tamer A. ElBatt; Fan Bai 002; Cem U. Saraydar (ICNC, 2012)

Resource allocation for throughput enhancement in cellular shared relay networks. - Mohamed Fadel; Ahmed Hindy; Amr El-Keyi; Mohammed Nafie; Onur Ozan Koyluoglu; Antonia M. Tulino (Sarnoff Symposium, 2012)

Reduced-Complexity SFBC-OFDM for Vehicular Channels with High Mobility. - Ahmed Attia Abotabl; Amr El-Keyi; Yahya Mohasseb; Tamer A. ElBatt (VTC Fall, 2012)

A feedback-based access scheme for cognitive-relaying networks. - Noha M. Helal; Karim G. Seddik; Amr El-Keyi; Tamer A. ElBatt (WCNC, 2012)

Cooperation via Cognitive System: Protocol Design and Performance Analysis - Ahmed El Shafie 001; Amr El-Keyi; Tamer Khattab; Mohammed Nafie (CoRR, 2012)

MIMO Vehicular Networks: Research Challenges and Opportunities. - Ahmed Attia Abotabl; Ahmad ElMoslimany; Amr El-Keyi; Tamer A. ElBatt; Fan Bai 002; Cem U. Saraydar (J. Commun., 2012)

QOS-Constrained Multiuser Peer-to-Peer Amplify-and-Forward Relay Beamforming. - Mohamed Fadel; Amr El-Keyi; Ahmed K. Sultan (IEEE Trans. Signal Process., 2012)

Alternate relaying and the degrees of freedom of one-way cellular relay networks. - Aya Salah; Amr El-Keyi; Mohammed Nafie (ACSSC, 2013)

Transmit and receive cooperative cognition: Protocol design and stability analysis. - Ahmed El Shafie 001; Amr El-Keyi; Tamer Khattab; Mohammed Nafie (CrownCom, 2013)

Low-complexity Kalman filter-based carrier frequency offset estimation and tracking for OFDM systems. - Mahmoud Ashour; Amr El-Keyi; Ahmed K. Sultan (ICASSP, 2013)

A novel stochastic geometrical model for wideband MIMO-V2V channels. - Ahmad ElMoslimany; Amr El-Keyi; Yahya Mohasseb (ICCIT, 2013)

Empirical correction of the Okumura-Hata model for the 900 MHz band in Egypt. - Muhammad Farhoud; Amr El-Keyi; Ahmed K. Sultan (ICCIT, 2013)

Maximizing the signal to leakage ratio in downlink cellular networks. - Ahmed Hindy; Amr El-Keyi; Mohammed Nafie; Antonia M. Tulino (ICCIT, 2013)

Optimal beamforming for MIMO shared relaying in downlink cellular networks with ARQ. - Ahmed Raafat Hosny; Ramy Abdallah Tannious; Amr El-Keyi (PIMRC, 2013)

Coverage probability analysis for wireless networks using repulsive point processes. - Abdelrahman M. Ibrahim; Tamer A. ElBatt; Amr El-Keyi (PIMRC, 2013)

Cooperation Between a Primary Terminal and an Energy Harvesting Cognitive Radio Terminal. - Ahmed El Shafie 001; Tamer Khattab; Amr El-Keyi; Mohammed Nafie (CoRR, 2013)

Joint power and rate scheduling for cognitive multi-access networks with imperfect sensing. - Ghada Saleh; Amr El-Keyi; Mohammed Nafie (EURASIP J. Wirel. Commun. Netw., 2013)

Cross-Layer Minimum-Delay Scheduling and Maximum-Throughput Resource Allocation for Multiuser Cognitive Networks. - Ghada Saleh; Amr El-Keyi; Mohammed Nafie (IEEE Trans. Mob. Comput., 2013)

Nuzzer: A Large-Scale Device-Free Passive Localization System for Wireless Environments. - Moustafa Seifeldin; Ahmed Saeed 001; Ahmed E. Kosba; Amr El-Keyi; Moustafa Youssef 001 (IEEE Trans. Mob. Comput., 2013)

Alternate versus simultaneous relaying in MIMO cellular relay networks: A degrees of freedom study. - Aya Salah; Amr El-Keyi; Mohammed Nafie (ACSSC, 2014)

A probabilistic MAC for cognitive radio systems with energy harvesting nodes. - Ramy E. Ali; Fadel F. Digham; Karim G. Seddik; Mohammed Nafie; Amr El-Keyi; Zhu Han 001 (GlobalSIP, 2014)

Degrees of freedom for a two-cell relay network with soft handoffs. - Ahmed S. Zamzam; Amr El-Keyi; Mohammed Nafie; Yahya Mohasseb (GLOBECOM, 2014)

A dynamic relaying scheme for cognitive networks with multipacket reception capability. - Sherif ElAzzouni; Amr El-Keyi; Mohammed Nafie (ICC, 2014)

A degrees of freedom-optimal scheme for SISO X channel with synergistic alternating CSIT. - Ahmed Wagdy; Amr El-Keyi; Tamer Khattab; Mohammed Nafie (ISIT, 2014)

On the stable throughput of cooperative cognitive radio networks with finite relaying buffer. - Adel M. Elmahdy; Amr El-Keyi; Tamer A. ElBatt; Karim G. Seddik (PIMRC, 2014)

MIMO Vehicle to Vehicle Channels: An Experimental Study. - Mahmoud Ashour; Ahmed Attia Abotabl; Ahmad ElMoslimany; Yahya Mohasseb; Amr El-Keyi (VTC Fall, 2014)

Equal-Priority Multiple Access Communications with Minimum Queuing Delay. - Moamen Soliman; Amr El-Keyi; Ahmed K. Sultan (VTC Fall, 2014)

A proper throughput-leakage balance for downlink cellular networks. - Ahmed Hindy; Amr El-Keyi; Mohammed Nafie; Antonia M. Tulino (WCNC, 2014)

The asymmetric DoF Region for the 3-user MxN Interference Channel. - Mohamed Khalil; Tamer Khattab; Amr El-Keyi; Mohammed Nafie (CoRR, 2014)

Energy-Efficient Cooperative Cognitive Relaying Protocols for Full-Duplex Cognitive Radio Users and Delay-Aware Primary Users. - Ahmed El Shafie 001; Tamer Khattab; Amr El-Keyi; H. Vincent Poor (CoRR, 2014)

A DoF-Optimal Scheme for the two-user X-channel with Synergistic Alternating CSIT. - Ahmed Wagdy; Amr El-Keyi; Tamer Khattab; Mohammed Nafie (CoRR, 2014)

On the Degrees of Freedom of SISO X-Channel with Alternating CSIT. - Ahmed Wagdy; Amr El-Keyi; Tamer Khattab; Mohammed Nafie (CoRR, 2014)

Optimal Windowing and Decision Feedback Equalization for Space-Frequency Alamouti-Coded OFDM in Doubly Selective Channels. - Ahmed Attia Abotabl; Amr El-Keyi; Yahya Mohasseb; Fan Bai 002 (IEEE Trans. Veh. Technol., 2014)

Achievable degrees of freedom on K-user MIMO multi-way relay channel with common and private messages. - Mohamed Salah Ibrahim; Amr El-Keyi; Yahya Mohasseb; Mohammed Nafie (ACSSC, 2015)

Stability and Delay Analysis for Cooperative Relaying with Multi-access Transmission. - Mohamed Salman; Amr El-Keyi; Mohammed Nafie; Mazen O. Hasna (CrownCom, 2015)

On the synergistic benefits of alternating CSIT for X channel within a four-symbol channel extension. - Ahmed Wagdy; Amr El-Keyi; Tamer Khattab; Mohammed Nafie (ICC, 2015)

Full-duplex cooperative cognitive radio networks. - Sherif ElAzzouni; Özgür Erçetin; Amr El-Keyi; Tamer A. ElBatt; Mohammed Nafie (WiOpt, 2015)

Sensing/Decision-Based Cooperative Relaying Schemes With Multi-Access Transmission: Stability Region And Average Delay Characterization. - Mohamed Salman; Amr El-Keyi; Mohammed Nafie; Mazen Omar Hasna (CoRR, 2015)

On the Degrees of Freedom of the Two-Cell Two-Hop MIMO Network With Dedicated and Shared Relays. - Ahmed S. Zamzam; Amr El-Keyi; Mohammed Nafie; Yahya Mohasseb (IEEE Trans. Wirel. Commun., 2015)

On the degrees of freedom region of the M × N Interference Channel. - Mohamed Khalil; Tamer Khattab; Amr El-Keyi; Mohammed Nafie (CCECE, 2016)

Interference Alignment for Heterogeneous Full-Duplex Cellular Networks. - Amr El-Keyi; Halim Yanikomeroglu (GLOBECOM, 2016)

Optimal Energy Allocation for Delay-Constrained Traffic over Fading Multiple Access Channels. - Antonious M. Girgis; Amr El-Keyi; Mohammed Nafie (GLOBECOM, 2016)

Efficient 3-D placement of an aerial base station in next generation cellular networks. - R. Irem Bor Yaliniz; Amr El-Keyi; Halim Yanikomeroglu (ICC, 2016)

Asymmetric degrees of freedom of the full-duplex MIMO 3-way channel. - Adel M. Elmahdy; Amr El-Keyi; Yahya Mohasseb; Tamer A. ElBatt; Mohammed Nafie; Karim G. Seddik (ITW, 2016)

Proactive Cognitive Networks with Predictable Demand. - Rana Ahmed; John Tadrous; Amr El-Keyi; Mohammed Nafie (VTC Fall, 2016)

Cooperative versus Full-Duplex Communication in Cellular Networks: A Comparison of the Total Degrees of Freedom. - Amr El-Keyi; Halim Yanikomeroglu (VTC Fall, 2016)

Proactive Location-Based Scheduling of Delay-Constrained Traffic over Fading Channels. - Antonious M. Girgis; Amr El-Keyi; Mohammed Nafie; Ramy H. Gohary (VTC Fall, 2016)

A Hybrid TDMA-MAC Cooperative Relaying Scheme: Stability and Delay Analysis. - Mohamed Salman; Amr El-Keyi; Mohammed Nafie; Mazen O. Hasna (VTC Fall, 2016)

Achievable Degrees of Freedom of the K-User MISO Broadcast Channel with Alternating CSIT via Interference Creation-Resurrection. - Mohamed Seif; Amr El-Keyi; Mohammed Nafie (VTC Fall, 2016)

On optimizing cooperative cognitive user performance under primary QoS constraints. - Adel M. Elmahdy; Amr El-Keyi; Tamer A. ElBatt; Karim G. Seddik (WCNC, 2016)

Novel cooperative policy for cognitive radio networks: Stability region and delay analysis. - Mohamed Salman; Amr El-Keyi; Mohammed Nafie; Mazen O. Hasna (WCNC, 2016)

Interactive Multiple Model Estimation of Doubly-Selective Channels for OFDM systems. - Mahmoud Ashour; Amr El-Keyi (CoRR, 2016)

Asymmetric Degrees of Freedom of the Full-Duplex MIMO 3-Way Channel with Unicast and Broadcast Messages. - Adel M. Elmahdy; Amr El-Keyi; Yahya Mohasseb; Tamer A. ElBatt; Mohammed Nafie; Karim G. Seddik; Tamer Khattab (CoRR, 2016)

On the Degrees of Freedom of SISO X-networks with Synergistic Alternating Channel State Information at transmitters. - Ahmed Wagdy Shaban; Amr El-Keyi; Tamer Khattab; Mohammed Nafie (CoRR, 2016)

Maximum Secondary Stable Throughput of a Cooperative Secondary Transmitter-Receiver Pair: Protocol Design and Stability Analysis. - Ahmed El Shafie 001; Tamer Khattab; Amr El-Keyi; Mohammed Nafie (IEEE Trans. Veh. Technol., 2016)

On the coexistence of a primary user with an energy harvesting secondary user: a case of cognitive cooperation. - Ahmed El Shafie 001; Tamer Khattab; Amr El-Keyi; Mohammed Nafie (Wirel. Commun. Mob. Comput., 2016)

Weighted Sum Degrees of Freedom of the Asymmetric MIMO Y Channel with Common and Private Messages. - Mohamed Salah Ibrahim; Amr El-Keyi; Mohammed Nafie; Yahya Mohasseb (GLOBECOM, 2017)

Degrees of freedom in cached MIMO relay networks with multiple base stations. - Osama A. Hanna; Amr El-Keyi; Mohammed Nafie (IWCMC, 2017)

Cooperative D2D communication in downlink cellular networks with energy harvesting capability. - Mohamed Seif; Amr El-Keyi; Karim G. Seddik; Mohammed Nafie (IWCMC, 2017)

A novel probabilistic path loss model for simulating coexistence between 802.11 and 802.15.4 networks in smart home environments. - Amr El-Keyi; Hamza Umit Sokun; Tu Ngoc Nguyen; Qiubo Ye; Haiying Julie Zhu; Halim Yanikomeroglu (PIMRC, 2017)

LTE Physical-Layer Identity Detection in the Presence of Jamming. - Amr El-Keyi; Oktay Üreten; Trevor Yensen; Halim Yanikomeroglu (VTC Fall, 2017)

LTE for Public Safety Networks: Synchronization in the Presence of Jamming. - Amr El-Keyi; Oktay Ureten; Halim Yanikomeroglu; Trevor Yensen (IEEE Access, 2017)

3D Placement of an Unmanned Aerial Vehicle Base Station (UAV-BS) for Energy-Efficient Maximal Coverage. - Mohamed Alzenad; Amr El-Keyi; Faraj Lagum; Halim Yanikomeroglu (CoRR, 2017)

3D Placement of an Unmanned Aerial Vehicle Base Station for Maximum Coverage of Users with Different QoS Requirements. - Mohamed Alzenad; Amr El-Keyi; Halim Yanikomeroglu (CoRR, 2017)

Optimizing Cooperative Cognitive Radio Networks Performance With Primary QoS Provisioning. - Adel M. Elmahdy; Amr El-Keyi; Tamer A. ElBatt; Karim G. Seddik (IEEE Trans. Commun., 2017)

Degrees of Freedom of the Full-Duplex Asymmetric MIMO Three-Way Channel With Unicast and Broadcast Messages. - Adel M. Elmahdy; Amr El-Keyi; Yahya Mohasseb; Tamer A. ElBatt; Mohammed Nafie; Karim G. Seddik; Tamer Khattab (IEEE Trans. Commun., 2017)

Degrees of Freedom for the MIMO Multi-Way Relay Channel With Common and Private Messages. - Mohamed Salah Ibrahim; Amr El-Keyi; Mohammed Nafie; Yahya Mohasseb (IEEE Trans. Wirel. Commun., 2017)

3-D Placement of an Unmanned Aerial Vehicle Base Station (UAV-BS) for Energy-Efficient Maximal Coverage. - Mohamed Alzenad; Amr El-Keyi; Faraj Lagum; Halim Yanikomeroglu (IEEE Wirel. Commun. Lett., 2017)

Degrees of freedom region of device-relaying cellular network. - Ahmed Roushdy 001; Amr El-Keyi; Mohammed Nafie (WCNC, 2018)

Cache-Aware Source Coding. - Osama A. Hanna; Mohammed Nafie; Amr El-Keyi (IEEE Commun. Lett., 2018)

Energy-efficient cooperative cognitive relaying schemes for cognitive radio networks. - Ahmed El Shafie 001; Tamer Khattab; Amr El-Keyi (Phys. Commun., 2018)

3-D Placement of an Unmanned Aerial Vehicle Base Station for Maximum Coverage of Users With Different QoS Requirements. - Mohamed Alzenad; Amr El-Keyi; Halim Yanikomeroglu (IEEE Wirel. Commun. Lett., 2018)

Spatial Configuration of Agile Wireless Networks With Drone-BSs and User-in-the-loop. - Irem Bor-Yaliniz; Amr El-Keyi; Halim Yanikomeroglu (IEEE Trans. Wirel. Commun., 2019)

Optimum Resource Allocation in MU-MIMO OFDMA Wireless Systems. - Chandra S. Bontu; Jagadish Ghimire; Amr El-Keyi (VTC Spring, 2020)

Downlink Covariance Estimation in URA FDD Massive MIMO Systems. - Salime Bameri; Khalid Almahorg; Ramy H. Gohary; Amr El-Keyi; Yahia Ahmed (ICASSP, 2023)

Hint: a Clue as to Where to Start an Iterative Massive MIMO Detection Process. - Maryam Rezvani; Raviraj Adve; Akram Bin Sediq; Amr El-Keyi (ICC, 2023)

Uplink-to-Downlink Covariance Matrix Estimation in ULA-equipped FDD Massive MIMO Systems. - Salime Bameri; Khalid A. Almahorg; Ramy H. Gohary; Amr El-Keyi; Yahia Ahmed (ICNC, 2023)

Uplink to Downlink Channel Covariance Transformation in FDD Systems. - Salime Bameri; Khalid A. Almahorg; Ramy H. Gohary; Amr El-Keyi; Yahia A. Eldemerdash (IEEE Trans. Signal Process., 2023)

Hardware Limitations of Dynamic Metasurface Antennas in the Uplink: A Comparative Study. - Maryam Rezvani; Raviraj Adve; Amr El-Keyi; Akram Bin Sediq (GLOBECOM (Workshops), 2024)

Energy Efficient Wireless Communications by Harnessing Huygens' Metasurfaces. - Maryam Rezvani; Raviraj Adve; Akram Bin Sediq; Amr El-Keyi (IEEE J. Sel. Areas Inf. Theory, 2025)

Matrix Pencil-Based DoA Estimation for Hybrid Receivers in Snapshot-Limited Scenarios. - Mona Mostafa; Ramy H. Gohary; Amr El-Keyi; Yahia A. Eldemerdash Ahmed (CoRR, 2025)