基于码率兼容LDPC码的多中继协作自适应传输

doi:10.13190/j.jbupt.2018-077

北京邮电大学学报 ›› 2018, Vol. 41 ›› Issue (6): 58-64.doi: 10.13190/j.jbupt.2018-077

基于码率兼容LDPC码的多中继协作自适应传输

苏华玲, 贺玉成, 周林

1. 华侨大学信息科学与工程学院, 福建厦门 361021;
2. 华侨大学厦门市移动多媒体通信重点实验室, 福建厦门 361021

收稿日期:2018-04-24 出版日期:2018-12-28 发布日期:2018-12-24
作者简介:苏华玲(1991-),女,硕士生,E-mail:1047746154@qq.com;贺玉成(1964-),男,教授.
基金资助:
福建省自然科学基金项目（2018J01096）；重庆市/信息产业部开放基金项目（CY-CNCL-2017-05）

Multi-Relay Cooperative Adaptive Transmission Based on Rate-Compatible LDPC Codes

SU Hua-ling, HE Yu-cheng, ZHOU Lin

1. School of Information Science and Engineering, Huaqiao University, Fujian Xiamen 361021, China;
2. Xiamen Key Laboratory of Mobile Multimedia Communications, Huaqiao University, Fujian Xiamen 361021, China

Received:2018-04-24 Online:2018-12-28 Published:2018-12-24

摘要/Abstract

摘要： 为适应动态信道条件，提高传输可靠性，基于增量冗余混合自动重传请求和码率兼容低密度奇偶校验码（RC-LDPC），研究了多中继选择的速率自适应中继协作传输体制.针对中继节点的随机分布和特定分布，提出2种不同的中继选择协作方案，并给出了系统中断概率和吞吐量性能的表达式.数值分析和仿真结果表明，在中继节点的特定分布下引入中继之间的相互协作，可同时显著提高系统的中断概率和吞吐量性能.

关键词: 混合自动重传请求, 码率兼容低密度奇偶校验码, 多中继选择, 速率自适应

Abstract: In order to adapt to dynamical channel conditions and improve the transmission reliability, rate-adaptive cooperative relay transmission schemes are investigated under multi-relay selection in combination with incremental redundancy hybrid automatic repeat request and rate-compatible low density parity check code (RC-LDPC). With respect to random and specific distributions of relay nodes, two different multi-relay selection protocols are proposed with deriving the expressions for the outage probability and throughput performances of the system. Both numerical and simulation results show that introducing a cooperation between the relays can significantly improve the system performance in both outage probability and throughput under the considered specific relay distribution.

Key words: hybrid automatic repeat request, rate-compatible low density parity check code, multi-relay selection, rate-adaptive

中图分类号:

TN929.5

苏华玲, 贺玉成, 周林. 基于码率兼容LDPC码的多中继协作自适应传输[J]. 北京邮电大学学报, 2018, 41(6): 58-64.

SU Hua-ling, HE Yu-cheng, ZHOU Lin. Multi-Relay Cooperative Adaptive Transmission Based on Rate-Compatible LDPC Codes[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2018, 41(6): 58-64.

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基于码率兼容LDPC码的多中继协作自适应传输

Multi-Relay Cooperative Adaptive Transmission Based on Rate-Compatible LDPC Codes

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