DIVERSITY ALLOCATION DUE TO INTER-RELAY COOPERATION FOR NETWORK-CODED WIRELESS NETWORKS
In conventional binary network coding (BNC),the decode condition constrains the achievement of diversity gain.In this paper,a novel network-coded scheme is proposed,where the inter-rely cooperation (IRC-NC) is employed to loose the above restriction.Firstly,two relays are divided into NC node and assistant node according to their channel gain to destination.This process is accomplished by the best rely selecting mechanism.Then,NC node codes and forwards the hybrid packet in optimal link while assistant node repeats its message in sub-optimal link simultaneously.The metric of un-retrieval probability is analytically deduced,and the result shows that the scheme outperforms BNC and has close performance with non-binary NC.Finally,the outage probability of the scheme is analyzed,and the simulations show that the proposed scheme is substantial superior (approximately 2 dB) to BNC.
Network Coding Diversity Allocation Best Relay Multi-Source Multi-Relay Outage Probability
Cheng Yu-lun Yang Long-xiang
Jiangsu Key Lab of Wireless Communications,Key Lab of Broadband Wireless Communication & Sensor Network Technology,Ministry of Education Nanjing University of Posts and Telecommunications Nanjing,P. R. China. 210003
国际会议
北京
英文
57-61
2013-04-27（万方平台首次上网日期，不代表论文的发表时间）