Optimization of cooperative secondary users in cognitive radio networks

被引：8
|
作者：
Chilakala, Sudhamani [1 ,2 ]
Ram, M. Satya Sai [1 ,2 ]
机构：
[1] CMR Tech Campus, Hyderabad 501401, Telangana, India
[2] Chalapathi Inst Engn & Technol, Guntur 522034, AP, India
来源：
ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH | 2018年 / 21卷 / 05期
关键词：
Cognitive radio; Cooperative spectrum sensing; Optimization; Energy efficiency; PERFORMANCE; DESIGN;
D O I：
10.1016/j.jestch.2018.07.013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, we identified the optimal number of secondary users in a cooperative spectrum sensing by maximizing the energy efficiency. We obtain the mathematical expressions and simulation results for the optimal number of secondary users using OR and AND fusion rules. We conducted the simulation for both OR and AND rules in two categories, One by keeping signal to noise ratio constant and second by keeping the detection threshold constant. Based on the analysis we showed that the performance obtained for OR rule is better than the AND rule. We hope that our results will be useful for improving the energy efficiency in identifying the un-utilized spectrum. (C) 2018 Karabuk University. Publishing services by Elsevier B.V.
引用
收藏
页码：815 / 821
页数：7
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