On Wyner-Ziv Problem for general sources with average distortion criterion  

作　　者：YANG Sheng-tian ZHAO Min-jian QIU Pei-liang 

机构地区：[1]Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China

出　　处：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2007年第8期1263-1270,共8页浙江大学学报（英文版）A辑（应用物理与工程）

基　　金：Project supported by the National Natural Science Foundation of China (Nos. 60472079 and 60602023) ;China Postdoctoral Sci-ence Foundation (No. 20060400314)

摘　　要：The Wyner-Ziv Problem for general sources with average distortion under fixed-length coding is investigated in this paper. To solve the problem,an enhanced covering lemma for a Markov chain is first established. Then based on the lemma,a general formula for the rate-distortion function of the problem is derived,where the distortion is only assumed uniformly bounded and may be nonadditive. Finally,it is further pointed out that such methods can be used to establish more general results on multiterminal source coding problems.The Wyner-Ziv Problem for general sources with average distortion under fixed-length coding is investigated in this paper. To solve the problem,an enhanced covering lemma for a Markov chain is first established. Then based on the lemma,a general formula for the rate-distortion function of the problem is derived,where the distortion is only assumed uniformly bounded and may be nonadditive. Finally,it is further pointed out that such methods can be used to establish more general results on multiterminal source coding problems.

关 键 词：Rate-distortion with side information Information spectrum Fixed-length coding Average distortion criterion 

分 类 号：O236[理学—运筹学与控制论] TN911.2[理学—数学]