Title :
Rate Region of the Vector Gaussian One-Helper Source-Coding Problem
Author :
Rahman, Md Saifur ; Wagner, Aaron B.
Author_Institution :
Samsung Res. America-Dallas, Richardson, TX, USA
Abstract :
We determine the rate region of the vector Gaussian one-helper source-coding problem under a covariance matrix distortion constraint. The rate region is achieved by a simple scheme that separates the lossy vector quantization from the lossless spatial compression. The converse is established by extending and combining three analysis techniques that have been employed in the past to obtain partial results for the problem.
Keywords :
Gaussian processes; covariance matrices; quantisation (signal); source coding; covariance matrix; lossless spatial compression; vector Gaussian one-helper source-coding; vector quantization; Covariance matrices; Decoding; Encoding; Optimization; Rate-distortion; Symmetric matrices; Vectors; Multiterminal source coding; covariance matrix distortion constraint; distortion projection; ocvariance matrix distortion constraint; one-helper problem; source enhancement; vector Gaussian sources; vector quantization;
Journal_Title :
Information Theory, IEEE Transactions on
DOI :
10.1109/TIT.2015.2412543
