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A Novel CoMAC-based cooperative spectrum sensing scheme in cognitive radio networks
Zheng M(郑萌); Xu C(许驰); Liang W(梁炜); Yu HB(于海斌); Chen L(陈林)
作者部门工业控制网络与系统研究室
会议名称2015 IEEE International Conference on Communication Workshop, ICCW 2015
会议日期June 8-12, 2015
会议地点London
会议录名称2015 IEEE International Conference on Communication Workshop, ICCW 2015
出版者IEEE
出版地Piscataway, NJ, USA
2015
页码1009-1013
收录类别EI ; CPCI(ISTP)
EI收录号20154801610826
WOS记录号WOS:000380459900163
产权排序1
ISBN号978-1-4673-6432-4
摘要Conventional cooperative spectrum sensing (CSS) schemes in cognitive radio networks (CRNs) require that the secondary users (SUs) report their sensing data sequentially to the fusion center, which yields long reporting delay especially in the case of large number of cooperative SUs. By exploiting the computation over multiple-access channel (CoMAC) method, this paper proposes a novel CoMAC-based CSS scheme that allows the cooperative SUs to encode their local statistics in transmit power and to transmit simultaneously the modulated symbols sequence carrying transmit power information to the fusion center. The fusion center then makes the final decision on the presence of primary users by recovering the overall test statistic of energy detection from the energy of the received signal. Performance metrics of the CoMAC-based CSS scheme, i.e., detection probability and false alarm probability, are further derived based on the central limit theorem. Finally, based on the derived detection and false alarm probabilities, both energy detection threshold and spectrum sensing time are optimized to improve the average throughput of the CRN.
语种英语
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文献类型会议论文
条目标识符http://ir.sia.cn/handle/173321/17394
专题工业控制网络与系统研究室
通讯作者Zheng M(郑萌)
作者单位1.Key Laboratory of Networked Control Systems, Chinese Academy of Sciences, Shenyang, China
2.University of Chinese Academy of Sciences, Beijing, China
3.Laboratoire de Recherche en Informatique (LRI), University of Paris-Sud XI, Orsay, France
推荐引用方式
GB/T 7714
Zheng M,Xu C,Liang W,et al. A Novel CoMAC-based cooperative spectrum sensing scheme in cognitive radio networks[C]. Piscataway, NJ, USA:IEEE,2015:1009-1013.
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