3 citations · 3 across the 3 of their papers we have counts for
3 papers
cs.NI2013★ 3 cited
Exploiting Self-Interference Suppression for Improved Spectrum Awareness/Efficiency in Cognitive Radio Systems
Wessam Afifi, Marwan Krunz
Inspired by recent developments in full-duplex communications, we propose and study new modes of operation for cognitive radios with the goal of achieving improved primary user (PU…
math.OC2010
Adaptive Sensing and Transmission Durations for Cognitive Radios
Wessam Afifi, Ahmed Sultan, Mohammed Nafie
In a cognitive radio setting, secondary users opportunistically access the spectrum allocated to primary users. Finding the optimal sensing and transmission durations for the secon…
math.OC2010
A New Adaptive Channel Estimation for Frequency Selective Time Varying Fading OFDM Channels
Wessam M. Afifi, Hassan M. Elkamchouchi
In this paper a new algorithm for adaptive dynamic channel estimation for frequency selective time varying fading OFDM channels is proposed. The new algorithm adopts a new strategy…