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

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 "CEO problem."

• Type: Journal
• Year: 2008
• Where: TIT
• Authors: Aaron B. Wagner, Saurabha Tavildar, Pramod Viswanath
• Keywords: Gaussian, Rate Region, TIT 2008, Two-encoder Source-coding Problem