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	Cooperation via Spectrum Sharing for Physical Layer Security in Device-to-Device Communications Underlaying Cellular Networks
	Zhang, Rongqing ; Cheng, Xiang ; Yang, Liuqing
	2016
关键词	D2D communications physical layer security spectrum sharing coalition formation game WIRE-TAP CHANNEL RESOURCE-ALLOCATION SYSTEMS D2D SECRECY
英文摘要	In this paper, we investigate the cooperation issue via spectrum sharing when employing physical layer security concept into the device-to-device (D2D) communications under-laying cellular networks. First, we derive the optimal joint power control solutions of the cellular communication links and D2D pairs in terms of the secrecy capacity under a simple cooperation case and further propose a secrecy-based access control scheme with the best D2D pair selection mechanism. Then, we consider a more general case that multiple D2D pairs can access the same resource block (RB) and one D2D pair is also permitted to access multiple RBs, and provide a novel cooperation mechanism in the investigated network. Furthermore, we formulate the provided cooperation mechanism among cellular communication links and D2D pairs as a coalitional game. Then, based on a newly defined max-coalition order in the constructed game, we further propose a merge-and-split-based coalition formation algorithm for cellular communication links and D2D pairs to achieve efficient and effective cooperation, leading to improved system secrecy rate and social welfare. Simulation results indicate the efficiency of the proposed secrecy-based access control scheme and the proposed merge-and-split-based coalition formation algorithm.; SCI(E); CPCI-S(ISTP); rongqing.zhang@colostate.edu; xiangcheng@pku.edu.cn; lqyang@engr.colostate.edu; 8; 5651-5663; 15
语种	英语
出处	IEEE Global Communications Conference (GLOBECOM)
DOI标识	10.1109/TWC.2016.2565579
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/491690]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Zhang, Rongqing,Cheng, Xiang,Yang, Liuqing. Cooperation via Spectrum Sharing for Physical Layer Security in Device-to-Device Communications Underlaying Cellular Networks. 2016-01-01.

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