Discrete memoryless interference channels with feedback

Abstract

We consider the discrete memoryless two-sender-two-receiver interference channel in the setting where received signals are sent back to their respective senders. The feedback signals enable each sender to crossly observe certain information transmitted by the other, and thus facilitate the senders to cooperate in resolving the remaining uncertainty in the previous transmission block. We develop a block Markov coding scheme for this channel, and obtain a corresponding achievable rate region. Furthermore, we also derive both implicit and explicit descriptions for the obtained achievable rate region. © 2007 IEEE.