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Indexed by:会议论文

Date of Publication:2013-11-20

Included Journals:EI、CPCI-S、Scopus

Page Number:203-208

Key Words:cognitive radio; spectrum sensing; imperfect reporting channel; Wi-Fi networks; K out of N rule

Abstract:Cognitive radio is a promising technology to improve the utilization of wireless spectrum resources. It can solve the spectrum shortage in Wi-Fi networks due to wireless Internet access. Spectrum sensing is the core functionality in cognitive radio networks. In this paper, we analyze the sensing performance and find optimal K in K out of N rule over imperfect reporting channels. Numerical evaluations illustrate that bit error probability over the reporting channel degrades the performance of the Wi-Fi network and that how the optimal sensing time affects the throughput of the Wi-Fi network.