基于多级编码的分布式信源编码  

Distributed Sources Coding Using Multilevel Codes

作　　者：陈睿[1] 李学明[1] 王尊亮[1] 

机构地区：[1]北京邮电大学信息与通信工程学院,北京100876

出　　处：《世界科技研究与发展》2009年第4期592-596,591,共6页World Sci-Tech R&D

基　　金：北京市自然科学基金资助项目(4072019)

摘　　要：分布式信源编码是无线通信领域研究的新热点,本文阐述了分布式编码的基础理论,介绍了应用于分布式编码的LDPC编码方法和多级编码方案,最后提出一种基于多级编码的分布式编码方案,实验结果表明该方案在一定的信噪比下获得了较高的编码效率,灵活地控制了传输码率。Distributed source coding is a new hot spot in the wireless sensor network area. This paper introduces the fundamental theory of dis- tributed coding,then LDPC coding and multilevel coding methods applied in distributed coding are given. Finally, a distributed multilevel coding method is proposed to realize correlated M-ary sources coding and in the case of different correlation between two sources the performances of distributed correlated M-ary sources coding are compared.

关 键 词：分布式编码 LDPC 多级编码 

分 类 号：TN911.21[电子电信—通信与信息系统]