Optimal Sum-Rate of the Vector Gaussian CEO Problem

Details Optimal Sum-Rate of the Vector Gaussian CEO Problem Optimal Sum-Rate of the Vector Gaussian CEO Problem

2012-02-06

arxiv.org/abs/1202.1254v1

Computer Science

Information Theory

Submitted to IEEE International Symposium on Information Theory, February 2012

Scientific paper

We study the vector Gaussian CEO problem, and obtain the optimal sum-rate that attains any given distortion. We show that the evaluation of the Berger-Tung inner bound with jointly Gaussian auxiliary random variables is optimal. We prove this optimality result by using channel enhancement in conjunction with a recent outer bound for the rate-distortion region of the vector Gaussian CEO problem.

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