A Multiway Relay Channel With Balanced Sources

被引：0

作者：

Ong, Lawrence ^{[1
]}

Timo, Roy ^{[2
]}

机构：

[1] Univ Newcastle, Sch Elect Engn & Comp Sci, Callaghan, NSW 2308, Australia

[2] Tech Univ Munich, Inst Commun Engn, D-80333 Munich, Germany

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2015年 / 63卷 / 12期

基金：

澳大利亚研究理事会;

关键词：

Correlated sources; distributed storage; finite-field channel; multiple-mutual information; multiway relay channel; source-channel coding; CAPACITY REGION;

D O I：

10.1109/TCOMM.2015.2487272

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We consider a joint source-channel coding problem on a finite-field multiway relay channel, and we give closed-form lower and upper bounds on the optimal source-channel rate. These bounds are shown to be tight for all discrete memoryless sources in a certain class P*, and we demonstrate that strict source-channel separation is optimal within this class. We show how to test whether a given source belongs to P*, we give a balanced-information regularity condition for P*, and we express P* in terms of conditional multiple-mutual information. Finally, we show that P* is useful for a centralized storage problem.

引用

页码：4809 / 4823

页数：15

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