Outage Performance and Diversity Analysis for Multiuser Multi-relay Cognitive Radio Systems

摘要：

In this paper, considering a multiuser multi-relay spectrum sharing cognitive radio system, the exact outage probability and diversity order for such a system are derived over Rayleigh fading channels. The theoretical analyses are validated by simulations. Both theoretical analyses and simulations show that the derived exact outage probability is accurate, and the diversity order is (M+1)N (where M is the number of relays and N is the number of users) for the selection decode-and-forward (SDF) protocol. It is indicated that both multiuser selection diversity and multi-relay selection cooperative diversity can be achieved simultaneously for SDF protocol in spectrum sharing cognitive radio systems.

关键词： outage probability diversity cognitive radio relay multiuser

作者: Chunjing Hu Zhi Yan

作者单位: Wireless Signal Processing and Network Lab (WSPN) Key Laboratory of Universal Wireless Communication,Ministry of Education Beijing University of Posts and Telecoms (BUPT) Beijing 100876, P. R. China

会议类型: 国际会议

会议名称: 2012 International Conference on Computer Science and Electronic Engineering(2012 IEEE计算机科学与电子工程国际会议 ICCSEE 2012)

会议地点: 杭州

会议语种:英文

页码: 187-191

在线出版日期: 2012-03-23（万方平台首次上网日期，不代表论文的发表时间）