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arXiv · 0905.3109

Interference Channels with Source Cooperation

Vinod M. Prabhakaran·Pramod Viswanath
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Abstract

The role of cooperation in managing interference - a fundamental feature of the wireless channel - is investigated by studying the two-user Gaussian interference channel where the source nodes can both transmit and receive in full-duplex. The sum-capacity of this channel is obtained within a gap of a constant number of bits. The coding scheme used builds up on the superposition scheme of Han and Kobayashi (1981) for the two-user interference channel without cooperation. New upperbounds on the sum-capacity are also derived. The same coding scheme is shown to obtain the sum-capacity of the symmetric two-user Gaussian interference channel with noiseless feedback within a constant gap.

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Vinod M. Prabhakaran, Pramod Viswanath. 2010-11-06. Interference Channels with Source Cooperation. https://doi.org/10.1109/tit.2010.2090231

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