Outage probability of cognitive amplify-and-forward relay networks under interference constraints

Hyungjong Kim, Hano Wang, Jemin Lee, Sungsoo Park, D. Hong
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引用次数: 8

Abstract

This paper presents the outage performance in cognitive relay networks. The closed-form expression for the outage probability is derived in cognitive amplify-and-forward (AF) relay networks under the interference constraint. Through the Monte Carlo simulation, it is shown that our analytic result is a tight bound especially at high average signal to noise ratio (SNR). Additionally, the numerical result shows the feasible region of AF relay in cognitive relay networks. This result also shows that the relaying transmission in the cognitive networks is inferior to the direct transmission in aspect of the outage performance, if the location of relay is too close to the primary receiver.
干扰约束下认知放大转发中继网络的中断概率
本文研究了认知中继网络的中断性能。推导了在干扰约束下认知放大转发(AF)中继网络中断概率的封闭表达式。通过蒙特卡罗仿真表明,在高平均信噪比的情况下,我们的分析结果是严格的。此外,数值结果显示了AF中继在认知中继网络中的可行区域。该结果还表明,在认知网络中,如果中继位置离主接收端太近,则中继传输在中断性能方面不如直接传输。
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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