Outage Performance of DF-Based Cooperative Multicast in Spectrum-Sharing Cognitive Relay Networks
Outage Performance of DF-Based Cooperative Multicast in Spectrum-Sharing Cognitive Relay Networks
复制标题
频谱共享认知中继网络中基于 DF 的协作组播的中断性能
DOI:
10.1109/lcomm.2014.2327631
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发表时间:
2014-05
期刊:
影响因子:
--
通讯作者:
Zhang, Hailin
中科院分区:
文献类型:
--
作者:
Yang, Long;Chen, Jian;Kuo, Yonghong;Zhang, Hailin
This letter investigates the outage performance of decode-and-forward-based cooperative multicast (CM) in spectrum-sharing cognitive relay networks (CRNs). Considering a CRN coexisted with multiple primary users, a closed-form expression for the exact outage probability of CM is derived over independently and non-identically distributed Rayleigh fading channels. The asymptotic analysis is also presented to reveal that the diversity gain of CM in CRNs is determined by the number of relays, and the spectrum-sharing scenario only has impact on coding gain. Simulation results corroborate our theoretical analysis.
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