Distributed Transmission of Functions of Correlated Sources over a Fading Multiple Access Channel

Rajesh, R and Sharma, Vinod (2009) Distributed Transmission of Functions of Correlated Sources over a Fading Multiple Access Channel. In: 47th Annual Allerton Conference on Communication, Control and Computing, SEP 30-OCT 02, 2009, Monticello, IL, pp. 1525-1532.

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Abstract

In this paper we address the problem of distributed transmission of functions of correlated sources over a fast fading multiple access channel (MAC). This is a basic building block in a hierarchical sensor network used in estimating a random field where the cluster head is interested only in estimating a function of the observations. The observations are transmitted to the cluster head through a fast fading MAC. We provide sufficient conditions for lossy transmission when the encoders and decoders are provided with partial information about the channel state. Furthermore signal side information maybe available at the encoders and the decoder. Various previous studies are shown as special cases. Efficient joint-source channel coding schemes are discussed for transmission of discrete and continuous alphabet sources to recover function values.

Item Type:	Conference Paper
Publisher:	IEEE
Additional Information:	Copyright 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords:	Joint source-channel coding; Fading MAC; Power allocation; Partial channel state information; Graph coloring; Correlated sources.
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	10 Aug 2010 04:54
Last Modified:	19 Sep 2010 06:13
URI:	http://eprints.iisc.ac.in/id/eprint/31055

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