Energy harvesting, cognitive radio technology, dynamic spectrum access, cooperative communications, distributed and sequential detection, physical layer-based secrecy, OFDM for optical communications, remote sensing and synthetic aperture radar (SAR).
Ahmed El Shafie, Ahmed K. Sultan Salem, Ioannis Krikidis, Naofal Al-Dhahir and Ridha Hamila,"Achievable Rates of Buffer-Aided Full-Duplex Gaussian Relay Channels," IEEE Access, vol. 5, pp. 23776-23791, 2017.
Hesham ElSawy, Ahmed K. Sultan Salem, Mohamed-Slim Alouini and Moe Z. Win, "Modeling and Analysis of Cellular Networks using Stochastic Geometry: A Tutorial," IEEE Communications Surveys and Tutorials, vol. 19, no. 1, pp. 167-203, First Quarter 2017.
Fatma Benkhelifa, Ahmed K. Sultan Salem, and Mohamed-Slim Alouini, "Sum-Rate Enhancement in Multiuser MIMO Decode-and-Forward Relay Broadcasting Channel with Energy Harvesting Relays," IEEE Journal on Selected Areas in Communications, vol. 34, no. 12, pp. 3675-3684, Dec. 2016.
Rawan Naous, Mohammad Zidan, Ahmed K. Sultan Salem, and Khaled Salama,"Pilot assisted readout for passive memristor crossbars," Microelectronics Journal, vol. 54, pp. 48—58, 2016.
Ahmed K. Sultan Salem, "Sensing and Transmit Energy Optimization for an Energy Harvesting Cognitive Radio," IEEE Wireless Communications Letters, vol. 5, no. 5, pp. 500—503, October 2012.