信道-网络编码的联合迭代译码设计  

Joint iterative decoding design of channel-network coding

作　　者：吴宇平[1] 赵旦峰[1] 佟宁宁[1,2] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001 [2]黑龙江工程学院电气与信息工程学院,黑龙江哈尔滨150050

出　　处：《系统工程与电子技术》2013年第7期1520-1526,共7页Systems Engineering and Electronics

基　　金：黑龙江省自然科学基金(F200810)资助课题

摘　　要：在研究无线网络中物理层网络编码技术的基础上,提出了一种新型的适用于多址中继信道的信道-网络编码的联合迭代译码设计方案,即卷积Turbo码(convolutional turbo codes,CTC)与网络编码的联合迭代译码设计方案。方案中考虑到中继可能存在不能正确译码信源信息的情况,信宿可以有选择地选择合适的先验信息进行译码。仿真结果表明该方案具有较强的纠错性能,同时随着中继点和信宿端的接收天线NR和ND的增多,系统的纠错性能也随之增强,从而表明本文提出的方案广泛适用于多址中继信道环境中。A new scheme of joint iterative decoding design of channel-network coding for multiple access relay channel based on studying physical layer＇s networking coding in wireless network is proposed,that is the joint iterative decoding design of convolutional Turbo codes（CTC） and network coding.This scheme considers that the relay may not correctly decode the source information,the destination can select the appropriate choice of a priori information for decoding.Simulation result shows this scheme has a stronger error correction performance and more suitable for harsh communication environment,in addition,with the increase of relay and destination＇s receiving antenna NR and ND,the error correction performance of the system increases as well,in other words,the proposed scheme can be widely used in the multiple access relay channel environment.

关 键 词：通信与信息系统 信道-网络编码 联合迭代译码 卷积TURBO码 中继 

分 类 号：TN911.22[电子电信—通信与信息系统]