Optimal rate allocation in successively structured Gaussian CEO problem

Authors:
Hamid Behroozi;M. Reza Soleymani
Affiliations:
Department of Mathematics and Statistics, Queen’s University, Kingston, ON, Canada;Department of Electrical and Computer Engineering, Concordia University, Montreal, QC, Canada
Venue:
IEEE Transactions on Wireless Communications
Year:
2009

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Abstract

We consider the Chief Executive Officer (CEO) problem in which agents encode their observations without collaborating with each other and send through rate constrained noiseless channels to a fusion center (FC). We apply the successive coding strategy into this problem and determine the closed-form expressions for optimal rates in order to achieve the minimum distortion under a sum-rate constraint. We show that the optimal sum-rate distortion performance for the Gaussian CEO problem is achievable using the successive coding strategy which is inherently a low complexity approach of obtaining a prescribed distortion. We also determine the optimal rate allocation region for the successively structured Gaussian CEO problem.