Sum Rate Optimization via Joint Beamforming in RIS-Assisted ISAC System: A Manifold-Based Approach.

Ahmed S. Ibrahim 0001 Ahmed Salah Ibrahim 0001 Florida International University, Department of Electrical and Computer Engineering, Miami, USA https://ece.fiu.edu/people/faculty/profiles/ibrahim-ahmed/index.html https://discovery.fiu.edu/display/person-ibrahim-mohamedahmed-salah https://web.eng.fiu.edu/aibrahim/ https://sites.google.com/view/aibrahim https://scholar.google.com/citations?user=Bdprd-EAAAAJ https://orcid.org/0000-0002-6206-6625 https://ieeexplore.ieee.org/author/37285500400 Ahmed S. Ibrahim Ahmed Salah Ibrahim

Ahmed Samir Ahmed S. Ibrahim 0001 Mahmoud H. Ismail Mohamed Elsayed 0001 Sum Rate Optimization via Joint Beamforming in RIS-Assisted ISAC System: A Manifold-Based Approach. 2026 786-801 7 IEEE Open J. Commun. Soc. https://doi.org/10.1109/OJCOMS.2025.3649379 db/journals/ojcs/ojcs7.html#SamirIIE26 streams/journals/ojcs

Mohamed Elsayed 0001 Ahmed S. Ibrahim 0001 Mahmoud H. Ismail Ahmed Samir Manifold-Based Sum Rate Maximization for MIMO Radar Communication Coexistence. 102-114 2026 12 IEEE Trans. Cogn. Commun. Netw. https://doi.org/10.1109/TCCN.2025.3554657 db/journals/tccn/tccn12.html#ElsayedIIS26 streams/journals/tccn

Joarder Jafor Sadique Imtiaz Nasim Ahmed S. Ibrahim 0001 Link Scheduling in Satellite Networks via Machine Learning Over Riemannian Manifolds. 972-985 2025 6 IEEE Open J. Commun. Soc. https://doi.org/10.1109/OJCOMS.2025.3533296 db/journals/ojcs/ojcs6.html#SadiqueNI25 streams/journals/ojcs

Mahfizur Rahman Khan Ahmed S. Ibrahim 0001 Learning to Optimize Joint Beamforming Transmission Over Riemannian Manifolds for RIS-Aided ISAC Systems. 10718-10728 2025 6 IEEE Open J. Commun. Soc. https://doi.org/10.1109/OJCOMS.2025.3646584 db/journals/ojcs/ojcs6.html#KhanI25 streams/journals/ojcs

Mohamed Elsayed 0001 Ahmed S. Ibrahim 0001 Mahmoud H. Ismail Ahmed Samir Sum Rate Maximization Over Riemannian Manifolds for RIS-Assisted Coexistence of Radar and Communication Systems. 495-506 2025 June 19 IEEE Syst. J. 2 https://doi.org/10.1109/JSYST.2025.3565261 db/journals/sj/sj19.html#ElsayedIIS25 streams/journals/sj

Mohamed Elsayed 0001 Ahmed S. Ibrahim 0001 Mahmoud H. Ismail Ahmed Samir Sum Secrecy Rate Optimization in RIS-Assisted ISAC Systems: A Manifold-Based Framework. 1244-1248 2025 April 14 IEEE Wirel. Commun. Lett. 4 https://doi.org/10.1109/LWC.2025.3540555 db/journals/wcl/wcl14.html#ElsayedIIS25 streams/journals/wcl

Omar M. ElSakka Ahmed S. Ibrahim 0001 Mahmoud H. Ismail Machine Learning over Riemannian Manifolds for Activity Detection in Grant-Free Random Access. GLOBECOM 2025 6490-6495 conf/globecom/2025 https://doi.org/10.1109/GLOBECOM59602.2025.11432106 db/conf/globecom/globecom2025.html#ElSakkaII25 streams/conf/globecom Joarder Jafor Sadique Mahfizur Rahman Khan Ahmed S. Ibrahim 0001 UAV-aided Fast Data Collection via Machine Learning Using AERPAW's Digital Twin. 89-96 2025 WiNTECH https://doi.org/10.1145/3737895.3768305 conf/wintech/2025 db/conf/wintech/wintech2025.html#SadiqueK025

Ali Ahmed Siddig Ahmed S. Ibrahim 0001 Mahmoud H. Ismail A Low-Delay Lyapunov-Based Relay Selection Scheme in Buffer-Aided Cooperative Networks. 427-431 2024 February 28 IEEE Commun. Lett. 2 https://doi.org/10.1109/LCOMM.2023.3343991 db/journals/icl/icl28.html#SiddigII24

Ahmed Samir Ahmed S. Ibrahim 0001 Mahmoud H. Ismail Basem M. ElHalawany Mohamed Elsayed 0001 Outage Performance of RIS-Assisted AmBC-NOMA Cooperative V2I Communications. 4371-4382 2024 5 IEEE Open J. Commun. Soc. https://doi.org/10.1109/OJCOMS.2024.3430051 db/journals/ojcs/ojcs5.html#SamirIIEE24 streams/journals/ojcs

Ahmed Abdelaziz Salem Mahmoud H. Ismail Ahmed S. Ibrahim 0001 Securing Full-Duplex Cognitive Radio With Reconfigurable Intelligent Surfaces via Coordinated Beamforming and Power Control. 4764-4777 2024 5 IEEE Open J. Commun. Soc. https://doi.org/10.1109/OJCOMS.2024.3435704 db/journals/ojcs/ojcs5.html#SalemII24 streams/journals/ojcs

Rashed Shelim Ahmed S. Ibrahim 0001 Learning Wireless Power Allocation Through Graph Convolutional Regression Networks Over Riemannian Manifolds. 3652-3662 2024 March 73 IEEE Trans. Veh. Technol. 3 https://doi.org/10.1109/TVT.2023.3325200 db/journals/tvt/tvt73.html#ShelimI24

Ahmed Elsheikh Ahmed S. Ibrahim 0001 Mahmoud H. Ismail Density-based anti-clustering for scheduling D2D communications. 2115-2125 2024 May 30 Wirel. Networks 4 https://doi.org/10.1007/s11276-023-03635-8 db/journals/winet/winet30.html#ElsheikhII24

Joarder Jafor Sadique Imtiaz Nasim Ahmed S. Ibrahim 0001 Radar Sensing via Geometric Machine Learning Over Riemannian Manifolds. 1-6 2024 ICCSPA https://doi.org/10.1109/ICCSPA61559.2024.10794182 conf/iccspa/2024 db/conf/iccspa/iccspa2024.html#SadiqueN024 Rashed Shelim Ahmed S. Ibrahim 0001 Grant-Free Access in Multi-Cell Massive MIMO through Learning Cooperative Activity Detection over Riemannian Manifolds. 1-6 2024 VTC Fall https://doi.org/10.1109/VTC2024-Fall63153.2024.10757907 conf/vtc/2024f db/conf/vtc/vtc2024f.html#Shelim024

Ahmed M. Benaya Mahmoud H. Ismail Ahmed S. Ibrahim 0001 Ahmed Abdelaziz Salem Physical Layer Security Enhancement via Intelligent Omni-Surfaces and UAV-Friendly Jamming. 2531-2544 2023 11 IEEE Access https://doi.org/10.1109/ACCESS.2023.3233947 db/journals/access/access11.html#BenayaIIS23

Joarder Jafor Sadique Imtiaz Nasim Ahmed S. Ibrahim 0001 Covariance Shaping Over Riemannian Manifolds for Massive MIMO Communication. 142874-142883 2023 11 IEEE Access https://doi.org/10.1109/ACCESS.2023.3344036 db/journals/access/access11.html#SadiqueNI23

Muhammad Iqbal Rochman Vanlin Sathya Damián Fernández Norlen Nunez Ahmed S. Ibrahim 0001 William Payne 0002 Monisha Ghosh A comprehensive analysis of the coverage and performance of 4G and 5G deployments. 110060 2023 December 237 Comput. Networks https://doi.org/10.1016/j.comnet.2023.110060 db/journals/cn/cn237.html#RochmanSFNIPG23

Ahmed Elsheikh Ahmed S. Ibrahim 0001 Mahmoud H. Ismail Sequence-to-sequence learning for link-scheduling in D2D communication networks. 103567 2023 March 212 J. Netw. Comput. Appl. https://doi.org/10.1016/j.jnca.2022.103567 db/journals/jnca/jnca212.html#ElsheikhII23

Seungmo Kim Ahmed S. Ibrahim 0001 Byzantine-Fault-Tolerant Consensus via Reinforcement Learning for Permissioned Blockchain-Empowered V2X Network. 172-183 2023 January 8 IEEE Trans. Intell. Veh. 1 https://doi.org/10.1109/TIV.2022.3168575 db/journals/tiv/tiv8.html#KimI23

Ahmed Abdelaziz Salem Mahmoud H. Ismail Ahmed S. Ibrahim 0001 Active Reconfigurable Intelligent Surface-Assisted MISO Integrated Sensing and Communication Systems for Secure Operation. 4919-4931 2023 April 72 IEEE Trans. Veh. Technol. 4 https://doi.org/10.1109/TVT.2022.3227319 db/journals/tvt/tvt72.html#SalemII23

Rashed Shelim Ahmed S. Ibrahim 0001 Wireless Link Scheduling Over Recurrent Riemannian Manifolds. 4959-4968 2023 April 72 IEEE Trans. Veh. Technol. 4 https://doi.org/10.1109/TVT.2022.3228212 db/journals/tvt/tvt72.html#ShelimI23

Ahmed Abdelaziz Salem Ahmed S. Ibrahim 0001 Mahmoud H. Ismail An optimization framework for RIS-based energy-efficient multi-cell NOMA systems. 100657 2023 October 43 Veh. Commun. https://doi.org/10.1016/j.vehcom.2023.100657 db/journals/vcomm/vcomm43.html#SalemII23

Diana Pineda Ricardo Harrilal-Parchment Kemal Akkaya Ahmed S. Ibrahim 0001 Alexander Perez-Pons Design and Analysis of an Open-Source SDN-based 5G Standalone Testbed. 1-6 2023 INFOCOM Workshops https://doi.org/10.1109/INFOCOMWKSHPS57453.2023.10225862 conf/infocom/2023w db/conf/infocom/infocom2023w.html#PinedaHAIP23

Rashed Shelim Ahmed S. Ibrahim 0001 Geometric Machine Learning Over Riemannian Manifolds for Wireless Link Scheduling. 22854-22864 2022 10 IEEE Access https://doi.org/10.1109/ACCESS.2022.3153324 https://www.wikidata.org/entity/Q115267234 db/journals/access/access10.html#ShelimI22

Mai A. Abdel-Malek Kemal Akkaya Arupjyoti Bhuyan Ahmed S. Ibrahim 0001 A Proxy Signature-Based Swarm Drone Authentication With Leader Selection in 5G Networks. 57485-57498 2022 10 IEEE Access https://doi.org/10.1109/ACCESS.2022.3178121 db/journals/access/access10.html#Abdel-MalekABI22

Imtiaz Nasim Ahmed S. Ibrahim 0001 Millimeter Wave Beamforming Codebook Design via Learning Channel Covariance Matrices Over Riemannian Manifolds. 119617-119629 2022 10 IEEE Access https://doi.org/10.1109/ACCESS.2022.3222032 db/journals/access/access10.html#NasimI22

Mai Kafafy Ahmed S. Ibrahim 0001 Mahmoud H. Ismail Optimal Placement of Reconfigurable Intelligent Surfaces for Spectrum Coexistence With Radars. 6574-6585 2022 71 IEEE Trans. Veh. Technol. 6 https://doi.org/10.1109/TVT.2022.3165391 db/journals/tvt/tvt71.html#KafafyII22

Ali Ahmed Siddig Ahmed S. Ibrahim 0001 Mahmoud H. Ismail A Low-Delay Hybrid Half/Full-Duplex Link Selection Scheme for Cooperative Relaying Networks. 11174-11188 2022 71 IEEE Trans. Veh. Technol. 10 https://doi.org/10.1109/TVT.2022.3189181 db/journals/tvt/tvt71.html#SiddigII22

Mai Kafafy Ahmed S. Ibrahim 0001 Mahmoud H. Ismail Optimized modulation order for V2V communication over index-modulated radar signals. 100492 2022 36 Veh. Commun. https://doi.org/10.1016/j.vehcom.2022.100492 db/journals/vcomm/vcomm36.html#KafafyII22

Ahmed Elsheikh Ahmed S. Ibrahim 0001 Mahmoud H. Ismail Ensemble Regression for 1-Bit Channel Estimation. 1-5 2022 ICCSPA https://doi.org/10.1109/ICCSPA55860.2022.10018988 conf/iccspa/2022 db/conf/iccspa/iccspa2022.html#ElsheikhII22 Mai Kafafy Ahmed S. Ibrahim 0001 Mahmoud H. Ismail Uplink Power Analysis of RIS-assisted Communication Over Shared Radar Spectrum. 1-5 2022 ICCSPA https://doi.org/10.1109/ICCSPA55860.2022.10019023 conf/iccspa/2022 db/conf/iccspa/iccspa2022.html#KafafyII22 Imtiaz Nasim Panagiotis Skrimponis Ahmed S. Ibrahim 0001 Sundeep Rangan Ivan Seskar Reinforcement learning of millimeter wave beamforming tracking over COSMOS platform. 40-44 2022 WiNTECH https://doi.org/10.1145/3556564.3558242 conf/mobicom/2022wintech db/conf/mobicom/wintech2022.html#NasimSIRS22

Muhammad Iqbal Rochman Damián Fernández Norlen Nunez Vanlin Sathya Ahmed S. Ibrahim 0001 Monisha Ghosh William Payne 0002 Impact of Device Thermal Performance on 5G mmWave Communication Systems. 2022 abs/2202.04830 CoRR https://arxiv.org/abs/2202.04830 db/journals/corr/corr2202.html#abs-2202-04830

Mai Kafafy Ahmed S. Ibrahim 0001 Mahmoud H. Ismail Maximum-Service Channel Assignment in Vehicular Radar-Communication. 138359-138370 2021 9 IEEE Access https://doi.org/10.1109/ACCESS.2021.3118964 db/journals/access/access9.html#KafafyII21

Mai Kafafy Ahmed S. Ibrahim 0001 Mahmoud H. Ismail Stochastic Geometry-Based Performance Analysis of Cellular Systems in the Vicinity of Rotating Radars. 1391-1395 2021 25 IEEE Commun. Lett. 4 https://doi.org/10.1109/LCOMM.2020.3045060 db/journals/icl/icl25.html#KafafyII21

Mai A. Abdel-Malek Nico Saputro Ahmed S. Ibrahim 0001 Kemal Akkaya UAV-Assisted Multi-path Parallel Routing for mmWave-Based Wireless Networks. 100366 2021 14 Internet Things https://doi.org/10.1016/j.iot.2021.100366 db/journals/iot/iot14.html#Abdel-MalekSIA21

Ahmed S. Ibrahim 0001 Wireless Link Scheduling via Interference-aware Symmetric Positive Definite Connectivity Manifolds. 1-5 2021 ICC Workshops https://doi.org/10.1109/ICCWorkshops50388.2021.9473707 conf/icc/2021w db/conf/icc/icc2021w.html#Ibrahim21 Muhammad Iqbal Rochman Vanlin Sathya Norlen Nunez Damián Fernández Monisha Ghosh Ahmed S. Ibrahim 0001 William Payne 0002 A Comparison Study of Cellular Deployments in Chicago and Miami Using Apps on Smartphones. 61-68 2021 WiNTECH https://doi.org/10.1145/3477086.3480843 conf/mobicom/2021wintech db/conf/mobicom/wintech2021.html#RochmanSNFGIP21 Mai A. Abdel-Malek Kemal Akkaya Arupjyoti Bhuyan Ahmed S. Ibrahim 0001 A Proxy Signature-Based Drone Authentication in 5G D2D Networks. 1-7 2021 VTC Spring https://doi.org/10.1109/VTC2021-Spring51267.2021.9448962 conf/vtc/2021s db/conf/vtc/vtc2021s.html#Abdel-MalekABI21

Muhammad Iqbal Rochman Vanlin Sathya Norlen Nunez Damián Fernández Monisha Ghosh Ahmed S. Ibrahim 0001 William Payne 0002 A Comparison Study of Cellular Deployments in Chicago and Miami Using Apps on Smartphones. 2021 abs/2108.00453 CoRR https://arxiv.org/abs/2108.00453 db/journals/corr/corr2108.html#abs-2108-00453

Ali Ahmed Siddig Ahmed S. Ibrahim 0001 Mahmoud H. Ismail Optimum Resource Allocation for Full-Duplex Vehicular Communication Networks. 146683-146696 2020 8 IEEE Access https://doi.org/10.1109/ACCESS.2020.3015539 db/journals/access/access8.html#SiddigII20

Ali Ahmed Siddig Ahmed S. Ibrahim 0001 Mahmoud H. Ismail An Optimal Power Allocation and Relay Selection Full-Duplex Store-Carry-Forward Scheme for Intermittently Connected Vehicular Networks. 163903-163916 2020 8 IEEE Access https://doi.org/10.1109/ACCESS.2020.3020826 db/journals/access/access8.html#SiddigII20a

Imtiaz Nasim Ahmed S. Ibrahim 0001 Seungmo Kim Learning-Based Beamforming for Multi-User Vehicular Communications: A Combinatorial Multi-Armed Bandit Approach. 219891-219902 2020 8 IEEE Access https://doi.org/10.1109/ACCESS.2020.3043301 db/journals/access/access8.html#NasimIK20

Mai A. Abdel-Malek Kemal Akkaya Arupjyoti Bhuyan Mumin Cebe Ahmed S. Ibrahim 0001 Enabling Second Factor Authentication for Drones in 5G using Network Slicing. 1-6 2020 GLOBECOM (Workshops) https://doi.org/10.1109/GCWkshps50303.2020.9367441 conf/globecom/2020w db/conf/globecom/globecom2020w.html#Abdel-MalekABCI20 Mai A. Abdel-Malek Kemal Akkaya Nico Saputro Ahmed S. Ibrahim 0001 Efficient Authentication of Drones to mmWave Wireless Mesh Networks in Post-Disaster Scenarios. 1-6 2020 GLOBECOM https://doi.org/10.1109/GLOBECOM42002.2020.9322282 conf/globecom/2020 db/conf/globecom/globecom2020.html#Abdel-MalekASI20 Ahmed S. Ibrahim 0001 Rethinking Maximum Flow Problem and Beamforming Design through Brain-inspired Geometric Lens. 1-6 2020 GLOBECOM https://doi.org/10.1109/GLOBECOM42002.2020.9321983 conf/globecom/2020 db/conf/globecom/globecom2020.html#Ibrahim20 Ahmed S. Ibrahim 0001 Self-Interference Cancellation and Beamforming in Repeater-assisted Full-duplex Vehicular Communication. 1-5 2020 VTC Spring https://doi.org/10.1109/VTC2020-Spring48590.2020.9128558 conf/vtc/2020s db/conf/vtc/vtc2020s.html#Ibrahim20 Ali Ahmed Siddig Ahmed S. Ibrahim 0001 Mahmoud H. Ismail Full-Duplex Store-Carry-Forward scheme for Intermittently Connected Vehicular Networks. 1-6 2020 VTC Spring https://doi.org/10.1109/VTC2020-Spring48590.2020.9129598 conf/vtc/2020s db/conf/vtc/vtc2020s.html#SiddigII20

Seungmo Kim Ahmed S. Ibrahim 0001 Byzantine-Fault-Tolerant Consensus via Reinforcement Learning for Permissioned Blockchain Implemented in a V2X Network. 2020 abs/2007.13957 CoRR https://arxiv.org/abs/2007.13957 db/journals/corr/corr2007.html#abs-2007-13957

Abdurrahman Fouda Ahmed S. Ibrahim 0001 Ismail Güvenç Monisha Ghosh Interference Management in UAV-Assisted Integrated Access and Backhaul Cellular Networks. 104553-104566 2019 7 IEEE Access https://doi.org/10.1109/ACCESS.2019.2927176 db/journals/access/access7.html#FoudaIGG19

Mai A. Abdel-Malek Ahmed S. Ibrahim 0001 Mohamed Mokhtar Kemal Akkaya UAV positioning for out-of-band integrated access and backhaul millimeter wave network. 2019 35 Phys. Commun. https://doi.org/10.1016/j.phycom.2019.100721 https://www.wikidata.org/entity/Q127752096 db/journals/phycomm/phycomm35.html#Abdel-MalekIMA19

M. H. Almekhlafi Ahmed S. Ibrahim 0001 Yasmine A. Fahmy Mohamed M. Khairy Resilient hybrid optical-RF backhauling for tiered networks. 2019 36 Phys. Commun. https://doi.org/10.1016/j.phycom.2019.100814 https://www.wikidata.org/entity/Q127405148 db/journals/phycomm/phycomm36.html#AlmekhlafiIFK19

Bruno Colo Abdurrahman Fouda Ahmed S. Ibrahim 0001 Ray Tracing Simulations in Millimeter-Wave Vehicular Communications. 1-4 2019 PIMRC https://doi.org/10.1109/PIMRC.2019.8904154 conf/pimrc/2019 db/conf/pimrc/pimrc2019.html#ColoFI19 Alberto Perez Abdurrahman Fouda Ahmed S. Ibrahim 0001 Ray Tracing Analysis for UAV-Assisted Integrated Access and Backhaul Millimeter Wave Networks. 1-5 2019 WOWMOM https://doi.org/10.1109/WoWMoM.2019.8792969 conf/wowmom/2019 db/conf/wowmom/wowmom2019.html#PerezFI19

Mahmoud Elgenedy Mohamed Mokhtar Ridha Hamila Waheed U. Bajwa Ahmed S. Ibrahim 0001 Naofal Al-Dhahir Sparsity-Based Joint NBI and Impulse Noise Mitigation in Hybrid PLC-Wireless Transmissions. 30280-30295 2018 6 IEEE Access https://doi.org/10.1109/ACCESS.2018.2842194 https://www.wikidata.org/entity/Q129734671 db/journals/access/access6.html#ElgenedyMHBIA18

Belal S. Amin Ahmed S. Ibrahim 0001 Mahmoud H. Ismail Hebat-Allah M. Mourad Precoding and power allocation algorithms for device-to-device communication in massive MIMO networks. 925-942 2018 24 Wirel. Networks 3 https://doi.org/10.1007/s11276-016-1379-8 db/journals/winet/winet24.html#AminIIM18

Abdurrahman Fouda Ahmed S. Ibrahim 0001 Ismail Güvenç Monisha Ghosh UAV-Based In-Band Integrated Access and Backhaul for 5G Communications. 1-5 2018 VTC Fall https://doi.org/10.1109/VTCFall.2018.8690860 conf/vtc/2018f db/conf/vtc/vtc2018f.html#FoudaIGG18

Abdurrahman Fouda Ahmed S. Ibrahim 0001 Ismail Güvenç Monisha Ghosh UAV-Based in-band Integrated Access and Backhaul for 5G Communications. 2018 abs/1807.07230 CoRR http://arxiv.org/abs/1807.07230 db/journals/corr/corr1807.html#abs-1807-07230

Yahia R. Ramadan Hlaing Minn Ahmed S. Ibrahim 0001 Hybrid Analog-Digital Precoding Design for Secrecy mmWave MISO-OFDM Systems. 5009-5026 2017 65 IEEE Trans. Commun. 11 https://doi.org/10.1109/TCOMM.2017.2734666 db/journals/tcom/tcom65.html#RamadanMI17

Mai A. Abdel-Malek Ahmed S. Ibrahim 0001 Mohamed Mokhtar Optimum UAV positioning for better coverage-connectivity tradeoff. 1-5 2017 PIMRC https://doi.org/10.1109/PIMRC.2017.8292633 conf/pimrc/2017 db/conf/pimrc/pimrc2017.html#Abdel-MalekIM17 M. H. Almekhlafi Ahmed S. Ibrahim 0001 Yasmine A. Fahmy Hany M. Elsayed Mohamed M. Khairy Hybrid optical/RF backhauling for 5G networks. 1-5 2017 PIMRC https://doi.org/10.1109/PIMRC.2017.8292599 conf/pimrc/2017 db/conf/pimrc/pimrc2017.html#AlmekhlafiIFEK17 Jorge Iscar Ismail Güvenç Sener Dikmese Ahmed S. Ibrahim 0001 Optimal Angular Spread of the Multipath Clusters in mmWave Systems under Pilot Contamination. 1-6 2017 VTC Fall https://doi.org/10.1109/VTCFall.2017.8288024 conf/vtc/2017f db/conf/vtc/vtc2017f.html#IscarGDI17 Nadisanka Rupasinghe Ahmed S. Ibrahim 0001 Ismail Güvenç Optimum Hovering Locations with Angular Domain User Separation for Cooperative UAV Networks. 1-6 2016 GLOBECOM https://doi.org/10.1109/GLOCOM.2016.7842113 conf/globecom/2016 db/conf/globecom/globecom2016.html#RupasingheIG16 Yahia R. Ramadan Ahmed S. Ibrahim 0001 Mohamed M. Khairy RF beamforming for secrecy millimeter wave MISO-OFDM systems. 1-6 2016 ICC https://doi.org/10.1109/ICC.2016.7511623 conf/icc/2016 db/conf/icc/icc2016.html#RamadanIK16 Mohamed M. El-Sayed Ahmed S. Ibrahim 0001 Mohamed M. Khairy Power allocation strategies for Non-Orthogonal Multiple Access. 1-6 2016 MoWNet https://doi.ieeecomputersociety.org/10.1109/MoWNet.2016.7496633 conf/mownet/2016 db/conf/mownet/mownet2016.html#El-SayedIK16

Yahia R. Ramadan Ahmed S. Ibrahim 0001 Mohamed M. Khairy Robust RF Beamforming for Millimeter Wave MIMO-OFDM Systems. 327-335 2015 22 Int. J. Wirel. Inf. Networks 4 https://doi.org/10.1007/s10776-015-0287-7 db/journals/ijwin/ijwin22.html#RamadanIK15

Ibrahim Atef Ashraf A. Eltholth Ahmed S. Ibrahim 0001 Magdy S. El-Soudani Energy detection of random arrival and departure of primary user signals in Cognitive Radio systems. 1-6 2015 EUROCON https://doi.org/10.1109/EUROCON.2015.7313791 conf/eurocon/2015 db/conf/eurocon/eurocon2015.html#AtefEIE15 Khaled Y. Ahmed Ahmed S. Ibrahim 0001 Ahmed Hesham Mehana Khaled M. F. Elsayed Performance Analysis of Dense Relay Network. 1-6 2015 VTC Fall https://doi.org/10.1109/VTCFall.2015.7391068 conf/vtc/2015f db/conf/vtc/vtc2015f.html#AhmedIME15 Yahia R. Ramadan Ahmed S. Ibrahim 0001 Mohamed M. Khairy Minimum outage RF beamforming for millimeter wave MISO-OFDM systems. 557-561 2015 WCNC https://doi.org/10.1109/WCNC.2015.7127530 conf/wcnc/2015 db/conf/wcnc/wcnc2015.html#RamadanIK15 Shady O. Elbassiouny Ahmed Elhamy 0001 Ahmed S. Ibrahim 0001 Traffic-aware user association technique for dynamic on/off switching of small cells. 866-871 2015 WCNC https://doi.org/10.1109/WCNC.2015.7127583 conf/wcnc/2015 db/conf/wcnc/wcnc2015.html#ElbassiounyEI15 Belal S. Amin Yahia R. Ramadan Ahmed S. Ibrahim 0001 Mahmoud H. Ismail Power allocation for device-to-device communication underlaying massive MIMO multicasting networks. 1219-1224 2015 WCNC https://doi.org/10.1109/WCNC.2015.7127643 conf/wcnc/2015 db/conf/wcnc/wcnc2015.html#AminRII15

Azzam Y. Al-nahari Ioannis Krikidis Ahmed S. Ibrahim 0001 Moawad I. Dessouky Fathi E. Abd El-Samie Relaying techniques for enhancing the physical layer secrecy in cooperative networks with multiple eavesdroppers. 445-460 2014 25 Trans. Emerg. Telecommun. Technol. 4 https://doi.org/10.1002/ett.2581 db/journals/ett/ett25.html#Al-nahariKIDE14

Ahmed M. Darwish 0002 Ahmed S. Ibrahim 0001 Capacity improvement via indoor small cells. 69-73 2014 IWCMC https://doi.org/10.1109/IWCMC.2014.6906334 conf/iwcmc/2014 db/conf/iwcmc/iwcmc2014.html#DarwishI14 Shady O. Elbassiouny Ahmed S. Ibrahim 0001 Link level performance evaluation of higher order modulation in Small Cells. 850-855 2014 IWCMC https://doi.org/10.1109/IWCMC.2014.6906467 conf/iwcmc/2014 db/conf/iwcmc/iwcmc2014.html#ElbassiounyI14 Yahia R. Ramadan Ahmed S. Ibrahim 0001 Mohamed M. Khairy Reliable RF beamforming for millimeter wave MIMO-OFDM systems. 113-117 2014 PIMRC https://doi.org/10.1109/PIMRC.2014.7136143 conf/pimrc/2014 db/conf/pimrc/pimrc2014.html#RamadanIK14 Mohamed Fadel Ahmed S. Ibrahim 0001 Hani Elgebaly QoS-Aware Multi-RAT resource allocation with minimum transmit power in multiuser OFDM system. 670-675 2012 GLOBECOM Workshops https://doi.org/10.1109/GLOCOMW.2012.6477654 conf/globecom/2012w db/conf/globecom/globecom2012w.html#FadelIE12 Esraa A. Makled Ahmed S. Ibrahim 0001 Ahmed M. Darwish 0002 Hani Elgebaly Non-Unanimous Power Inter-Cell Interference Coordination in Heterogeneous Networks. 1-6 2012 VTC Spring https://doi.org/10.1109/VETECS.2012.6240185 conf/vtc/2012s db/conf/vtc/vtc2012s.html#MakledIDE12 Ahmed S. Ibrahim 0001 Ahmed M. Darwish 0002 Esraa A. Makled Hani Elgebaly Adaptive interference mitigation techniques for femtocells. 1218-1223 2012 WCNC https://doi.org/10.1109/WCNC.2012.6213963 conf/wcnc/2012 db/conf/wcnc/wcnc2012.html#IbrahimDME12 Ahmed M. Darwish 0002 Ahmed S. Ibrahim 0001 Ashraf H. Badawi Hani Elgebaly Performance Improvement of Fractional Frequency Reuse in WiMAX Network. 1-5 2011 VTC Spring https://doi.org/10.1109/VETECS.2011.5956578 conf/vtc/2011s db/conf/vtc/vtc2011s.html#DarwishIBE11

Ahmed S. Ibrahim 0001 K. J. Ray Liu Mitigating channel estimation error with timing synchronization tradeoff in cooperative communications. 337-348 2010 58 IEEE Trans. Signal Process. 1 https://doi.org/10.1109/TSP.2009.2029255 db/journals/tsp/tsp58.html#IbrahimL10

Wafaa Taie Ahmed S. Ibrahim 0001 Ashraf H. Badawi Hani Elgebaly Performance Evaluation of WiMAX System in Various Morphological Scenarios. 1-5 2010 VTC Fall https://doi.org/10.1109/VETECF.2010.5594538 conf/vtc/2010f db/conf/vtc/vtc2010f.html#TaieIBE10 Ahmed Salah Ibrahim 0001 Relay Deployment and Selection in Cooperative Wireless Networks. 2009 University of Maryland, College Park, MD, USA https://hdl.handle.net/1903/9139 https://www.base-search.net/Record/963eca7a498f18be0f7303c9989cd5c2786ff31139a40d8b7d257adc81d8a6d6 base-search.net (ftunivmaryland:oai:drum.lib.umd.edu:1903/9139)

Ahmed S. Ibrahim 0001 Karim G. Seddik K. J. Ray Liu Connectivity-aware network maintenance and repair via relays deployment. 356-366 2009 8 IEEE Trans. Wirel. Commun. 1 https://doi.org/10.1109/T-WC.2009.080045 db/journals/twc/twc8.html#IbrahimSL09

Hung-Quoc Lai Ahmed S. Ibrahim 0001 K. J. Ray Liu Wireless network cocast: location-aware cooperative communications with linear network coding. 3844-3854 2009 8 IEEE Trans. Wirel. Commun. 7 https://doi.org/10.1109/TWC.2009.081456 db/journals/twc/twc8.html#LaiIL09

Mohammed W. Baidas Ahmed S. Ibrahim 0001 Karim G. Seddik K. J. Ray Liu On the Impact of Correlation on Distributed Detection in Wireless Sensor Networks with Relays Deployment. 1-6 2009 ICC https://doi.org/10.1109/ICC.2009.5199254 conf/icc/2009 db/conf/icc/icc2009.html#BaidasISL09 Ahmed S. Ibrahim 0001 K. J. Ray Liu Mitigating Channel Estimation Error via Cooperative Communications. 1-5 2009 ICC https://doi.org/10.1109/ICC.2009.5199186 conf/icc/2009 db/conf/icc/icc2009.html#IbrahimL09

Karim G. Seddik Ahmed S. Ibrahim 0001 K. J. Ray Liu Trans-Modulation in Wireless Relay Networks. 170-172 2008 12 IEEE Commun. Lett. 3 https://doi.org/10.1109/LCOMM.2008.071734 db/journals/icl/icl12.html#SeddikIL08

Karim G. Seddik Ahmed K. Sadek Ahmed S. Ibrahim 0001 K. J. Ray Liu Design Criteria and Performance Analysis for Distributed Space-Time Coding. 2280-2292 2008 57 IEEE Trans. Veh. Technol. 4 https://doi.org/10.1109/TVT.2007.912145 db/journals/tvt/tvt57.html#SeddikSIL08

Ahmed S. Ibrahim 0001 Ahmed K. Sadek Weifeng Su K. J. Ray Liu Cooperative communications with relay-selection: when to cooperate and whom to cooperate with? 2814-2827 2008 7 IEEE Trans. Wirel. Commun. 7 https://doi.org/10.1109/TWC.2008.070176 db/journals/twc/twc7.html#IbrahimSSL08

Ahmed S. Ibrahim 0001 Zhu Han 0001 K. J. Ray Liu Distributed energy-efficient cooperative routing in wireless networks. 3930-3941 2008 7 IEEE Trans. Wirel. Commun. 10 https://doi.org/10.1109/T-WC.2008.070502 db/journals/twc/twc7.html#IbrahimHL08

Hung-Quoc Lai Ahmed S. Ibrahim 0001 K. J. Ray Liu Location-Aware Cooperative Communications Utilizing Linear Network Coding. 4609-4613 2008 GLOBECOM https://doi.org/10.1109/GLOCOM.2008.ECP.883 conf/globecom/2008 db/conf/globecom/globecom2008.html#LaiIL08 Ahmed S. Ibrahim 0001 Karim G. Seddik K. J. Ray Liu Connectivity-Aware Network Maintenance via Relays Deployment. 2573-2578 2008 WCNC https://doi.org/10.1109/WCNC.2008.452 conf/wcnc/2008 db/conf/wcnc/wcnc2008.html#IbrahimSL08 Ahmed S. Ibrahim 0001 Karim G. Seddik K. J. Ray Liu Improving Connectivity via Relays Deployment in Wireless Sensor Networks. 1159-1163 2007 GLOBECOM https://doi.org/10.1109/GLOCOM.2007.223 conf/globecom/2007 db/conf/globecom/globecom2007.html#IbrahimSL07 Karim G. Seddik Ahmed K. Sadek Ahmed S. Ibrahim 0001 K. J. Ray Liu Synchronization-Aware Distributed Space-Time Codes in Wireless Relay Networks. 3452-3456 2007 GLOBECOM https://doi.org/10.1109/GLOCOM.2007.655 conf/globecom/2007 db/conf/globecom/globecom2007.html#SeddikSIL07 Ahmed S. Ibrahim 0001 Zhu Han 0001 K. J. Ray Liu Distributed Energy-Efficient Cooperative Routing in Wireless Networks. 4413-4418 2007 GLOBECOM https://doi.org/10.1109/GLOCOM.2007.839 conf/globecom/2007 db/conf/globecom/globecom2007.html#IbrahimHL07 Ahmed S. Ibrahim 0001 K. J. Ray Liu Dalma Novak Rod B. Waterhouse A Subspace Signal Processing Technique for Concealed Weapons Detection. 401-404 2007 ICASSP (2) https://doi.org/10.1109/ICASSP.2007.366257 conf/icassp/2007 db/conf/icassp/icassp2007.html#IbrahimLNW07 Ahmed S. Ibrahim 0001 Ahmed K. Sadek Weifeng Su K. J. Ray Liu Relay Selection in Multi-Node Cooperative Communications: When to Cooperate and Whom to Cooperate with? 2006 conf/globecom/2006 GLOBECOM https://doi.org/10.1109/GLOCOM.2006.601 db/conf/globecom/globecom2006.html#IbrahimSSL06 Ahmed S. Ibrahim 0001 Ahmed K. Sadek Weifeng Su K. J. Ray Liu Cooperative communications with partial channel state information: When to cooperate? 5 2005 GLOBECOM https://doi.org/10.1109/GLOCOM.2005.1578321 conf/globecom/2005 db/conf/globecom/globecom2005.html#IbrahimSSL05 Mai A. Abdel-Malek Khaled Y. Ahmed Kemal Akkaya Naofal Al-Dhahir Azzam Y. Al-nahari M. H. Almekhlafi Belal S. Amin Ibrahim Atef Ashraf H. Badawi Mohammed W. Baidas Waheed U. Bajwa Ahmed M. Benaya Arupjyoti Bhuyan Mumin Cebe Bruno Colo Ahmed M. Darwish 0002 Moawad I. Dessouky Sener Dikmese Fathi E. Abd El-Samie Mohamed M. El-Sayed Magdy S. El-Soudani Shady O. Elbassiouny Hani Elgebaly Mahmoud Elgenedy Basem M. ElHalawany Omar M. ElSakka Hany M. Elsayed Khaled M. F. Elsayed Mohamed Elsayed 0001 Ahmed Elsheikh Ashraf A. Eltholth Mohamed Fadel Yasmine FahmyYasmine A. Fahmy Damián Fernández Abdurrahman Fouda Monisha Ghosh Ismail Güvenç Ridha Hamila Zhu Han 0001 Ricardo Harrilal-Parchment Jorge Iscar Mahmoud H. Ismail Mai Kafafy Mohamed M. Khairy Mahfizur Rahman Khan Seungmo Kim Ioannis Krikidis Hung-Quoc Lai K. J. Ray Liu Esraa A. Makled Ahmed Hesham Mehana Hlaing Minn Mohamed Mokhtar Ahmed Elhamy MostafaAhmed Elhamy 0001 Hebatallah M. MouradHebat-Allah M. Mourad Imtiaz Nasim Dalma Novak Norlen Nunez William Payne 0002 Alberto Perez Alexander Perez-Pons Diana Pineda Yahia R. Ramadan Sundeep Rangan Muhammad Iqbal Rochman Nadisanka Rupasinghe Ahmed K. Sadek Joarder Jafor Sadique Ahmed Abdelaziz Salem Ahmed Samir Nico Saputro R. Vanlin SathyaVanlin Sathya Karim G. Seddik Ivan Seskar Rashed Shelim Ali Ahmed Siddig Panagiotis Skrimponis Weifeng Su Wafaa Taie Rod B. Waterhouse