Multiple-Source Slepian-Wolf Coding Under a Linear Equation Correlation Model

被引:2
作者
Li, Shizheng [1 ]
Ramamoorthy, Aditya [1 ]
机构
[1] Iowa State Univ, Dept Elect & Comp Engn, Ames, IA 50011 USA
基金
美国国家科学基金会;
关键词
Slepian-Wolf; distributed source coding; rate adaptive codes; LDPC; RATE REGION; LDPC CODES; COMPRESSION; INFORMATION; NETWORKS;
D O I
10.1109/TCOMM.2012.070912.110062
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
In this work we present practical coding schemes for the problem of lossless distributed source coding for multiple sources. We consider two scenarios - the classical Slepian-Wolf case where there is no feedback from the terminal to the sources and a case where there is feedback from the terminal to the source encoders. The correlation model of interest is given by a system of linear equations, a generalization of the work of Stankovic et al. '06. We propose a transformation of correlation model and a way to determine proper decoding schedules, both of which are required to obtain the optimal sum rate. Our scheme allows us to exploit more correlations than those in the previous work. Simulation results show that the proposed coding scheme has lower sum rate than previous work in both scenarios.
引用
收藏
页码:2402 / 2407
页数:6
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