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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)
Department工业控制网络与系统研究室
Conference Name2015 IEEE International Conference on Communication Workshop, ICCW 2015
Conference DateJune 8-12, 2015
Conference PlaceLondon
Source Publication2015 IEEE International Conference on Communication Workshop, ICCW 2015
PublisherIEEE
Publication PlacePiscataway, NJ, USA
2015
Pages1009-1013
Indexed ByEI ; CPCI(ISTP)
EI Accession number20154801610826
WOS IDWOS:000380459900163
Contribution Rank1
ISBN978-1-4673-6432-4
AbstractConventional 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.
Language英语
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttp://ir.sia.cn/handle/173321/17394
Collection工业控制网络与系统研究室
Corresponding AuthorZheng M(郑萌)
Affiliation1.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
Recommended Citation
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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