740 citations · 3.8k across the 111 of their papers we have counts for
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Capacity with Causal and Non-Causal Side Information - A Unified View
Syed A. Jafar
We identify the common underlying form of the capacity expression that is applicable to both cases where causal or non-causal side information is made available to the transmitter.…
Degrees of Freedom in Multiuser MIMO
Syed A. Jafar, Maralle J. Fakhereddin
We explore the available degrees of freedom for various multiuser MIMO communication scenarios such as the multiple access, broadcast, interference, relay, X and Z channels. For th…
Optimal Relay Functionality for SNR Maximization in Memoryless Relay Networks
Krishna Srikanth Gomadam, Syed Ali Jafar
We explore the SNR-optimal relay functionality in a \emph{memoryless} relay network, i.e. a network where, during each channel use, the signal transmitted by a relay depends only o…
Capacity Limits of Cognitive Radio with Distributed and Dynamic Spectral Activity
Syed A. Jafar, Sudhir Srinivasa
We investigate the capacity of opportunistic communication in the presence of dynamic and distributed spectral activity, i.e. when the time varying spectral holes sensed by the cog…