Computer Science – Information Theory
Scientific paper
2009-07-15
IEEE Trans. Inform. Theory 57 (2011) 187-209
Computer Science
Information Theory
revised based on reviewers' comments
Scientific paper
10.1109/TIT.2010.2090237
Interference is a fundamental feature of the wireless channel. To better understand the role of cooperation in interference management, the two-user Gaussian interference channel where the destination nodes can cooperate by virtue of being able to both transmit and receive is studied. The sum-capacity of this channel is characterized up to a constant number of bits. The coding scheme employed builds up on the superposition scheme of Han and Kobayashi (1981) for two-user interference channels without cooperation. New upperbounds to the sum-capacity are also derived.
Prabhakaran Vinod M.
Viswanath Pramod
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