Performance Evaluation of Energy Detector in Cognitive Radio System

被引：2
|
作者：
Armi, Nasrullah [1 ]
Chaenah, B. A. W. [1 ]
Arhad, Muhammad [2 ]
机构：
[1] Indonesian Inst Sci, Res Ctr Elect & Telecommun, Jakarta, Indonesia
[2] Jazan Univ, Dept Comp Sci, Jazan 82822, Saudi Arabia
来源：
ADVANCED SCIENCE LETTERS | 2015年 / 21卷 / 11期
关键词：
Energy Detector; Spectrum Sensing; Cognitive Radio; Rayleigh Fading; Gaussian Noise;
D O I：
10.1166/asl.2015.6596
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The most popular technique to detect unused license spectrum in Cognitive Radio (CR) is Energy Detector (ED). It is a blind detector that prior knowledge of primary user signals for detection is not required. This paper studies detection performance of unused spectrum under Rayleigh fading and additive white Gaussian noise (AWGN). We evaluate detection performance as a function of probability of false detection (Pf) and detector threshold (lambda). Performance of energy detector under Rayleigh fading is compared with energy detection under AWGN. The derived results show that at a certain values, the performance of detection under Rayleigh fading outperforms detection under AWGN.
引用
收藏
页码：3494 / 3496
页数：3
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