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Cooperative Sensing Clustering Game for Efficient Channel Exploitation in Cognitive Radio Network  

Jang, Sungjeen (인하대학교 정보통신공학부 무선전송연구실)
Yun, Heesuk (인하대학교 정보통신공학부 무선전송연구실)
Bae, Insan (인하대학교 정보통신공학부 무선전송연구실)
Kim, JaeMoung (인하대학교 정보통신공학부)
Publication Information
Journal of Satellite, Information and Communications / v.10, no.1, 2015 , pp. 49-55 More about this Journal
Abstract
In cognitive radio network (CRN), spectrum sensing is an elementary level of technology for non-interfering to licensed user. Required sample number for spectrum sensing is directly related to the throughput of secondary user and makes the tradeoff between the throughput of secondary user and interference to primary user. Required spectrum sensing sample is derived from required false alarm, detection probability and minimum required SNR of primary user (PU). If we make clustering and minimize the required transmission boundary of secondary user (SU), we can relax the required PU SNR for spectrum sensing because the required SNR for PU signal sensing is related to transmission range of SU. Therefore we can achieve efficient throughput of CRN by minimizing spectrum sensing sample. For this, we design the tradeoff between gain and loss could be obtained from clustering, according to the size of cluster members through game theory and simulation results confirm the effectiveness of the proposed method.
Keywords
CRN(Cognitive Radio Network); Cooperative Sensing; Coalition Game; Energy Detection; Coalition Header; Utility Function;
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