Outage Performance for Cognitive Relay Networks with Underlay Spectrum Sharing

Outage Performance for Cognitive Relay Networks with Underlay Spectrum Sharing
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DOI：
10.1109/lcomm.2011.051011.110426
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发表时间：
2011-05
期刊：
IEEE Communications Letters
影响因子：
--
通讯作者：
Liping Luo;Ping Zhang;Guangchi Zhang;J. Qin
Liping Luo;Ping Zhang;Guangchi Zhang;J. Qin
中科院分区：
其他
文献类型：
--
作者：
Liping Luo;Ping Zhang;Guangchi Zhang;J. Qin

文献摘要

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研究了认知中继系统在频谱共享模型下的中断性能。结果表明，由于干扰功率的约束，接收到的SNR之间的依赖性。推导了接收信噪比的联合概率。通过考虑空解码集情况下的相关性，得到了中断概率的一个严格下界。仿真结果验证了理论分析的正确性。
The outage performance is investigated for a cognitive relay system with underlay spectrum sharing model. It is shown that the dependence among the received SNRs is introduced due to the interference power constraint. The joint probability of the received SNRs is derived. By considering the dependence for the case of null decoding set, a tight lower bound on the outage probability is obtained. Simulation results are presented to verify the theoretical analyses.