Exact Outage Probability of Underlay Cognitive Cooperative Networks Over Rayleigh Fading Channels

被引：14
|
作者：
Khuong Ho-Van [1 ]
机构：
[1] Ho Chi Minh City Univ Technol, Ho Chi Minh City, Vietnam
来源：
WIRELESS PERSONAL COMMUNICATIONS | 2013年 / 70卷 / 02期
关键词：
Decode-and-forward; Cognitive radio; Underlay; Cooperative communications; Rayleigh fading channels; DIVERSITY; RELAY;
D O I：
10.1007/s11277-012-0742-z
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
Our contribution in this paper is the derivation of an exact closed-form outage probability formula for underlay cognitive cooperative networks operated over Rayleigh fading channels. The derivation considers the correlation among received signal-to-noise ratios, two critical constraints (interference power constraint and maximum transmit power constraint), and non identically distributed (i.d.) channels. The derived formula is corroborated by Monte Carlo simulations and is served as an useful and effective tool to evaluate the performance behavior of underlay cognitive cooperative networks without time-consuming simulations under different operation parameters. Numerical results illustrate that underlay cognitive cooperative networks suffer the outage saturation phenomenon for a given maximum interference power level.
引用
收藏
页码：1001 / 1009
页数：9
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