A Censor-Based Cooperative Spectrum Sensing Scheme Using Fuzzy Logic for Cognitive Radio Sensor Networks

被引:5
|
作者
Kieu-Xuan, Thuc [1 ]
Koo, Insoo [1 ]
机构
[1] Univ Ulsan, Sch Elect Engn, Ulsan, South Korea
关键词
wireless sensor network; cognitive radio; cooperative spectrum sensing fuzzy; system data fusion;
D O I
10.1587/transcom.E93.B.3497
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This letter proposes a novel censor based scheme for cooperative spectrum sensing on Cognitive Radio Sensor Networks A Takagi Sugeno s fuzzy system is proposed to make the decision on the presence of the licensed user s signal based on the observed energy at each cognitive sensor node The local spectrum sensing results are aggregated to make the final sensing decision at the fusion center after being censored to reduce transmission energy and reporting time Simulation results show that significant improvement of the spectrum sensing accuracy and saving energy as well as reporting time are achieved by our scheme
引用
收藏
页码:3497 / 3500
页数:4
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