电子科技大学学报2017，Vol.46Issue(5)：673-678,6.DOI:10.3969/j.issn.1001-0548.2017.05.006
一种基于ARQ的最优中继动态选择协作方法
An ARQ-Based Selection Cooperation Scheme with Dynamic Best Relays
摘要
Abstract
In cooperative networks with automatic repeat request (ARQ), the multiple-rounds retransmission is used to improve the reliability at the cost of additional delay. In this paper, a cross-layer cooperative strategy is investigated in ARQ cooperative networks for the case that relay nodes do not have ability of signal combining reception. A selection cooperation scheme is proposed, in which both the decoding set and the selection of best relay are changed dynamically during each round of retransmission. In Rayleigh fading channels, the proposed scheme can achieve optimal diversity-multiplexing-delay (D-M-D) tradeoff without increasing the receiver complexity of relay nodes. Simulation results show that the outage probability performance of the proposed scheme is close to that of the scheme using combining reception at relay nodes. It achieves better tradeoff between the receiver complexity and the system performance.关键词
自动重传请求/协作通信/分集复用时延权衡/中断概率/选择协作Key words
automatic repeat request (ARQ)/cooperative communication/diversity-multiplexing-delay (D-M-D) tradeoff/outage probability/selection cooperation分类
信息技术与安全科学引用本文复制引用
王恒,赵晓瑞,李敏..一种基于ARQ的最优中继动态选择协作方法[J].电子科技大学学报,2017,46(5):673-678,6.基金项目
国家自然科学基金(61301125) （61301125）
重庆市基础与前沿研究计划(cstc2015jcyjA40023) （cstc2015jcyjA40023）
重庆市教委科学技术研究项目(KJ1500413) （KJ1500413）
