A Novel CoMAC-based cooperative spectrum sensing scheme in cognitive radio networks

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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)
	2015
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
页码	1009-1013
中文摘要	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.
收录类别	EI ; CPCI（ISTP）
产权排序	1
会议录	2015 IEEE International Conference on Communication Workshop, ICCW 2015
会议录出版者	IEEE
会议录出版地	Piscataway, NJ, USA
语种	英语
ISBN号	978-1-4673-6432-4
WOS记录号	WOS:000380459900163
内容类型	会议论文
源URL	[http://ir.sia.cn/handle/173321/17394]
专题	沈阳自动化研究所_工业控制网络与系统研究室
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]. 见:2015 IEEE International Conference on Communication Workshop, ICCW 2015. London. June 8-12, 2015.