Multichannel cooperative sensing for cognitive radio with users owning heterogeneous sensing ability

	Multichannel cooperative sensing for cognitive radio with users owning heterogeneous sensing ability
	Ge, Wendong; Ji, Hong; Li, Xi
发表期刊	INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS
	2014-12-01
卷号	27 期号:12;12 页码:3884-3900
文章类型	Article
摘要	Multichannel cooperative sensing (MCS) is an effective method for dynamic spectrum access in cognitive radio networks. In contrast to most existing work on MCS that considered secondary users with homogeneous sensing ability, this paper studies the MCS problem for secondary users with heterogeneous sensing ability in terms of sensing accuracy. We further take into account different parameters of primary channels such as bandwidth, probability of being idle in each sensing period, and frequency selective fading at the sensing receiver. The MCS problem is formulated as a weapon target assignment problem, where more sensing resources are assigned to channels that are more valuable. This weapon target assignment problem is transformed to an integer generalized network flow problem with convex flow costs to obtain the lower bound solution, and then solved by the branch and bound algorithm with this bound to yield the exact scheme. To reduce computational complexity, a heuristic scheme is also proposed, which has approximate performance compared with the exact scheme. Finally, extensive simulation results for different scenarios illustrate the performance improvements of the proposed schemes over the existing scheme. Copyright (c) 2013 John Wiley & Sons, Ltd.
关键词	Cognitive Radio Cooperative Sensing Weapon Target Assignment Branch And Bound
WOS标题词	Science & Technology ; Technology
关键词[WOS]	TARGET ASSIGNMENT PROBLEM ; NETWORKS ; ALGORITHMS
收录类别	SCI
语种	英语
WOS研究方向	Engineering ; Telecommunications
WOS类目	Engineering, Electrical & Electronic ; Telecommunications
WOS记录号	WOS:000345917800025
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ia.ac.cn/handle/173211/40865
专题	复杂系统认知与决策实验室_听觉模型与认知计算
推荐引用方式 GB/T 7714	Ge, Wendong,Ji, Hong,Li, Xi. Multichannel cooperative sensing for cognitive radio with users owning heterogeneous sensing ability[J]. INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS,2014,27(12;12):3884-3900.
APA	Ge, Wendong,Ji, Hong,&Li, Xi.(2014).Multichannel cooperative sensing for cognitive radio with users owning heterogeneous sensing ability.INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS,27(12;12),3884-3900.
MLA	Ge, Wendong,et al."Multichannel cooperative sensing for cognitive radio with users owning heterogeneous sensing ability".INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS 27.12;12(2014):3884-3900.