CASIA OpenIR  > 数字内容技术与服务研究中心  > 听觉模型与认知计算
Multichannel cooperative sensing for cognitive radio with users owning heterogeneous sensing ability
Ge, Wendong1,2; Ji, Hong1; Li, Xi1
Source PublicationINTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS
2014-12-01
Volume27Issue:12Pages:3884-3900
SubtypeArticle
AbstractMultichannel 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.
KeywordCognitive Radio Cooperative Sensing Weapon Target Assignment Branch And Bound
WOS HeadingsScience & Technology ; Technology
WOS KeywordTARGET ASSIGNMENT PROBLEM ; NETWORKS ; ALGORITHMS
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Telecommunications
WOS SubjectEngineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000345917800025
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/3308
Collection数字内容技术与服务研究中心_听觉模型与认知计算
Affiliation1.Beijing Univ Posts & Telecommun, Beijing 100876, Peoples R China
2.Chinese Acad Sci, Inst Automat, Beijing 100190, Peoples R China
First Author AffilicationInstitute of Automation, Chinese Academy of Sciences
Recommended Citation
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):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),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(2014):3884-3900.
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