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题名: Utility-based opportunistic spectrum access for cognitive radio sensor networks: Joint spectrum sensing and random access control
作者: Zheng M(郑萌); Liang W(梁炜); Yu HB(于海斌); Sharif, Hamid
作者部门: 工业控制网络与系统研究室
刊名: IET Communications
ISSN号: 1751-8628
出版日期: 2016
卷号: 10, 期号:9, 页码:1044-1052
收录类别: SCI ; EI
产权排序: 1
项目资助者: Natural Science Foundation of China (61304263 and 61233007) and Liaoning Provincial Natural Science Foundation of China (2014020081).
摘要: This study formulates a novel optimisation problem for joint spectrum sensing and random access control (JS2RAC) in cognitive radio sensor networks (CRSNs). The JS2RAC is formulated as a network utility maximisation problem, which aims to maximise the sum of utilities over all links in the network but subject to the primary user protection constraint, the energy constraint, and the physical constraint. Due to the non-separable and non-convex nature of the JS2RAC problem, the authors propose a primal-decomposition-based iterative (PDI) algorithm which decomposes the JS2RAC problem into a spectrum sensing subproblem and a random access control subproblem, and solve the two subproblems iteratively. Then, the authors prove the convergence of the PDI algorithm and show its distributed implementation in practice. Simulations demonstrate the fast convergence and the near-optimal nature of the PDI algorithm and show its significant improvement in the network utility of CRSNs in comparison with the method of optimising spectrum sensing and random access separately.
语种: 英语
WOS记录号: WOS:000378801100007
WOS标题词: Science & Technology ; Technology
类目[WOS]: Engineering, Electrical & Electronic
关键词[WOS]: ENERGY EFFICIENCY ; OPTIMIZATION ; ALLOCATION ; CONSTRAINT ; TRADEOFF ; SCHEME
研究领域[WOS]: Engineering
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/18732
Appears in Collections:工业控制网络与系统研究室_期刊论文

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Recommended Citation:
Zheng M,Liang W,Yu HB,et al. Utility-based opportunistic spectrum access for cognitive radio sensor networks: Joint spectrum sensing and random access control[J]. IET Communications,2016,10(9):1044-1052.
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