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A Threshold Optimization Method for Decentralized Cooperative Spectrum Sensing in Cognitive Radio Networks
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 Title & Authors
A Threshold Optimization Method for Decentralized Cooperative Spectrum Sensing in Cognitive Radio Networks
Kim, Nak-Kyun; Byun, Youn-Shik;
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 Abstract
Lately, spectrum sensing performance has been improved by using cooperate spectrum sensing which each results of sensing of several secondary users are reported to the fusion center. Using Cognitive Radio, secondary user is able to share a bandwidth allocated to primary user. In this paper, we propose a new decentralized cooperative spectrum sensing scheme which compensates the performance degradation of existing decentralized cooperative spectrum sensing considering the error probability of the channel which sensed result of the secondary user is delivered to the fusion center in decentralized cooperative spectrum sensing. In addition, a sensing threshold optimization of minimizing the error probability of decentralized cooperative spectrum sensing is introduced by deriving the equation and the optimal sensing threshold has been confirmed to maximize the decentralized cooperative spectrum sensing performance.
 Keywords
cognitive radio;spectrum sensing;cooperative sensing;reporting error;optimal threshold;
 Language
Korean
 Cited by
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주파수 홉핑 기반 인지무선 애드 혹 네트워크에서 동적 스펙트럼 센싱 및 채널 엑세스 방안,원종민;유상조;서명환;조형원;

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인지 라디오 네트워크를 위한 안전한 협력 센싱 기법,김태운;최우열;

한국통신학회논문지, 2016. vol.41. 8, pp.877-889 crossref(new window)
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