18 citations · 89 across the 23 of their papers we have counts for
3 papers · 1 filter
A Soft Sensing-Based Cognitive Access Scheme Exploiting Primary Feedback
Ahmed M. Arafa, Karim G. Seddik, Ahmed K. Sultan +2
In this paper, we examine a cognitive spectrum access scheme in which secondary users exploit the primary feedback information. We consider an overlay secondary network employing a…
On the Diversity Gain Region of the Z-interference Channels
Mohamed S. Nafea, Karim G. Seddik, Mohammed Nafie +1
In this work, we analyze the diversity gain region (DGR) of the single-antenna Rayleigh fading Z-Interference channel (ZIC). More specifically, we characterize the achievable DGR o…
A Diversity-Multiplexing-Delay Tradeoff of ARQ Protocols in The Z-interference Channel
Mohamed S. Nafea, D. Hamza, Karim G. Seddik +2
In this work, we analyze the fundamental performance tradeoff of the single-antenna Automatic Retransmission reQuest (ARQ) Z-interference channel (ZIC). Specifically, we characteri…