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http://dx.doi.org/10.6109/JKIICE.2009.13.9.1891

Performance Comparison of Spectrum Sensing according to Structure of Sensing Receiver  

Kang, Bub-Joo (동국대학교 정보통신공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.13, no.9, 2009 , pp. 1891-1897 More about this Journal
Abstract
This paper describes the optimization of the spectrum sensing in terms of the throughput of the cognitive radio (CR)system. The conventional rapers do not describe the optimization problem of the spectrum sensing by considering the channel search and channel move of the CR system to be caused by the appearance of the incumbent user. However this paper evaluates the throughput of the CR user by considering the situations such as the channel search and channel move additionally. Also, this paper suggests the sensing structure being separated the data receiver from sensing receiver, and compares the sensing performance for the same receiver structure of sensing and communication with that for the separated sensing receiver in terms of the throughput of the CR user. The numerical result demonstrates that the performance of the throughput efficiency is improved by the proposed sensing receiver to be separated from the data communication path.
Keywords
signal detection; spectrum sensing; cognitive radio;
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