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Rate Region of the Quadratic Gaussian Two-Encoder Source-Coding Problem

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3 Author(s)
Wagner, A.B. ; Cornell Univ., Ithaca ; Tavildar, S. ; Viswanath, P.

We determine the rate region of the quadratic Gaussian two-encoder source-coding problem. This rate region is achieved by a simple architecture that separates the analog and digital aspects of the compression. Furthermore, this architecture requires higher rates to send a Gaussian source than it does to send any other source with the same covariance. Our techniques can also be used to determine the sum-rate of some generalizations of this classical problem. Our approach involves coupling the problem to a quadratic Gaussian ldquoCEO problem.rdquo

Published in:

Information Theory, IEEE Transactions on  (Volume:54 ,  Issue: 5 )