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This paper has been submitted to IEEE Transactions on Information Theory.

Abstract

This paper emphasizes the importance of relay channels that possess correlated information at the transmitter and the relay as basic building blocks for sensor networks. This work characterizes sources which can be reliably transmitted over a relay channel. This characterization is obtained for two distinct scenarios. The first scenario involves the transmission of a single source to the receiver using the relay as an intermediate node. The second involves communicating two sources of information simultaneously (available at the transmitter and at the relay respectively) to the receiver.

In this paper, explicit conditions are found under which the transmitter and relay can achieve full data cooperation, as if they were co-located and acted as a multiple antenna transmitter. Finally, the scalar and MIMO Gaussian relay channels are used as illustrative examples. These cases show that the set of relay channels with correlated information in which full data cooperation is possible, and thus capacity can be characterized, is non-trivial and is a fairly realistic set.

Citation

Brian Smith and Sriram Vishwanath . "Capacity Analysis of the Relay Channel with Correlated Sources." IEEE Transactions on Information Theory. (submitted)

BibTeX

@inproceedings{ {{{bitex cite}}},
  author = "Brian Smith and Sriram Vishwanath",
  title = { Capacity Analysis of the Relay Channel with Correlated Sources },
  booktitle = { IEEE Transactions on Information Theory }
}