Joint Design of QC-LDPC Codes for Coded Relay Cooperation  

作　　者：TANG Lei YANG Fengfan ZHANG Shunwai SAQIB Ejaz LUO Lin 

机构地区：[1]College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics [2]School of Communication Engineering, Nanjing Institute of Technology [3]College of Information Science and Engineering, Southeast University

出　　处：《Chinese Journal of Electronics》2016年第1期179-184,共6页电子学报（英文版）

基　　金：supported by the School Scientific Research Fund of Nanjing Institute of Technology(No.YKJ201417)

摘　　要：This paper proposes an effective method to jointly design girth-4 cycle-free Quasi-cyclic(QC) Lowdensity parity-check(LDPC) codes for multi-relay cooperation in a Rayleigh fading channel, where the joint iterative decoding by Min-sum algorithm(MSA) based on the introduced joint Tanner graph is also presented at the destination. Theoretical analysis and simulation show that the proposed QC-LDPC coded cooperation outperforms the randomly coded cooperation under the same conditions.This paper proposes an effective method to jointly design girth-4 cycle-free Quasi-cyclic（QC） Lowdensity parity-check（LDPC） codes for multi-relay cooperation in a Rayleigh fading channel, where the joint iterative decoding by Min-sum algorithm（MSA） based on the introduced joint Tanner graph is also presented at the destination. Theoretical analysis and simulation show that the proposed QC-LDPC coded cooperation outperforms the randomly coded cooperation under the same conditions.

关 键 词：Coded cooperation Low-density parity-check （LDPC） codes Min-sum algorithm （MSA） Joint it-erative decoding Treble-layer Tanner graph. 

分 类 号：TN911.22[电子电信—通信与信息系统] TP391.41[电子电信—信息与通信工程]