Outage probability of a cognitive cooperative relay network with multiple primary users under primary outage constraint

Charles Kabiri, H. Zepernick, Hung Tran
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引用次数: 2

Abstract

In this paper, we consider a cognitive cooperative relay network (CCRN) that utilizes a decode-and-forward relay in the presence of multiple primary users. Given this system setting, we study the effect of multiple primary transmitters (PU-Txs) and multiple primary user receivers (PU-Rxs) on the outage probability of the considered CCRN. Specifically, power allocation policies for the secondary user transmitter (SU-Tx) and the secondary relay (SR) are formulated, subject to the outage constraint which is imposed by the PU-Rxs as well as the peak transmit power limits given at the SU-Tx and SR. On the basis of these power allocation policies for the SU-Tx and SR, an expression for the outage probability of the CCRN is derived. Numerical examples are presented to show the effect of different system parameters on the outage probability of the CCRN.
主中断约束下多主用户认知协同中继网络的中断概率
在本文中,我们考虑了一种认知合作中继网络(CCRN),该网络在多个主用户存在的情况下利用译码转发中继。在此系统设置下,我们研究了多个主发送器(PU-Txs)和多个主用户接收器(PU-Rxs)对所考虑的CCRN中断概率的影响。具体地说,根据用户二级发射机(SU-Tx)和二级中继(SR)的中断约束以及SU-Tx和SR给出的峰值发射功率限制,制定了二级用户发射机(SU-Tx)和二级中继(SR)的功率分配策略。在SU-Tx和SR的功率分配策略的基础上,导出了CCRN的中断概率表达式。通过数值算例分析了不同系统参数对CCRN中断概率的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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