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Transmission of correlated sources over Gaussian multiple-access channels with phase shifts

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3 Author(s)
Abdallah, F.A. ; Mobile Commun. Dept., Eurecom, Sophia-Antipolis ; Knopp, R. ; Caire, G.

In this paper, we address the problem of separate encoding of correlated sources observed by sensor nodes that send their encoded information through a Gaussian multiple access channel (GMAC) with phase shifts. We suppose that the phases are perfectly known at the receiver and unknown to the transmitters. For discrete sources with finite-cardinality alphabets, we prove that the separation theorem holds for both random ergodic and arbitrary non-random models for the phase shifts, and consequently, the strategy of combining Slepian-Wolf coding to capacity achieving channel encoders is optimal for both.

Published in:

Communication, Control, and Computing, 2008 46th Annual Allerton Conference on

Date of Conference:

23-26 Sept. 2008

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