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Distributed transmission of functions of correlated sources over a fading multiple access channel

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2 Author(s)
Rajesh, R. ; Dept. of ECE, Indian Inst. of Sci., Bangalore, India ; Sharma, V.

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.

Published in:

Communication, Control, and Computing, 2009. Allerton 2009. 47th Annual Allerton Conference on

Date of Conference:

Sept. 30 2009-Oct. 2 2009

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