Outage Analysis of CRNs with SC Diversity Over Nakagami-m Fading Environment

• Zongsheng Zhang,
• Qihui Wu,
• Xueqiang Zheng,
• Jinlong Wang,
• Lianbao Li,

Vol. 7, No. 12, December 28, 2013
10.3837/tiis.2013.12.003, Download Paper (Free):

• cognitive relay network (CRN)
• selection combining (SC)
• Nakagami-m fading
• outage probability.

Abstract

In this paper, we investigate the outage performance of a cognitive relay network. We consider mutual interference in an independent, non-identically distributed Nakagmai-m fading environment. We first derive the close-form outage probability expression, which provides an efficient means to evaluate the effects of several parameters. This allows us to study the impact of several parameters on the network’s performance. We then derive the asymptotic expression and reveal that the diversity order is strictly determined by the fading severity of the cognitive system. It is not affected by the primary network. Moreover, the primary network only affects the coding gain of the cognitive system. Finally, Monte Carlo simulations are provided, which corroborate the analytical results.

Statistics

Cite this article