Typical behavior of relays in communication channels

Alamino, Roberto C. and Saad, David (2007). Typical behavior of relays in communication channels. Physical review E, 76 , pp. 1-8.

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Official URL: http://link.aps.org/doi/10.1103/PhysRevE.76.061124

Abstract

The typical behaviour of the relay-without-delay channel under LDPC coding and its multiple-unit generalisation, termed the relay array, is studied using methods of statistical echanics. A demodulate-and-forward strategy is analytically solved using the replica symmetric ansatz which is exact in the system studied at Nishimori’s temperature. In particular, the typical level of improvement in communication performance by relaying messages is shown in the case of small and large number of relay units.

Item Type:Article
Additional Information:Copyright of the American Physical Society.
Uncontrolled Keywords:statistical physics, replica theory, relay channel, LDPC codes
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ID Code:7244
Deposited By:Roberto Alamino
Deposited On:11 Jan 2010 13:40
Last Modified:20 Feb 2014 07:33

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