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题名: Spectrum Allocation in Cognitive Radio Networks Using Swarm Intelligence
作者: Zhang BW(张北伟) ; Hu KY(胡琨元) ; Zhu YL(朱云龙)
作者部门: 工业信息学研究室
会议名称: 2nd International Conference on Communication Software and Networks
会议日期: February 26-28, 2010
会议地点: Singapore, SINGAPORE
会议录: SECOND INTERNATIONAL CONFERENCE ON COMMUNICATION SOFTWARE AND NETWORKS: ICCSN 2010, PROCEEDINGS
会议录出版者: IEEE COMPUTER SOC
会议录出版地: LOS ALAMITOS
出版日期: 2010
页码: 8-12
收录类别: CPCI(ISTP) ; EI
ISBN号: 978-0-7695-3961-4
关键词: Cognitive radio ; Spectrum allocation ; Graph coloring ; Swarm intelligence
摘要: Cognitive radio is an emerging technique to improve the utilization of radio frequency spectrum in wireless networks. This paper discusses the problem of spectrum sharing among primary users and secondary users, and carries out the centralized spectrum allocation with the following two goals: (1) maximize system's sum bandwidth reward, and (2) maximize second users' access fairness. The spectrum allocation problem is formulated into a multi-objective optimization problem aiming at optimizing the system's overall performance and reducing to a graph coloring problem. Graph coloring problem is a well known NP-hard problem. A swarm intelligence based algorithm, particle swarm optimization (PSO), is used to solve the problem. Simulations are conducted to compare the proposed methods with the CSGC algorithms under the Collaborative-Max-Sum-Reward (CSUM) and Collaborative-Max-Proportional-Fair (CMPF) rules. Our experiment results show that the proposed method provides a good tradeoff between the system's sum bandwidth reward and the secondary users' access fairness, and has a better system overall performance. The paper gives an effective method for the spectrum allocation of cognitive radio networks.
语种: 英语
产权排序: 1
内容类型: 会议论文
URI标识: http://ir.sia.cn/handle/173321/8412
Appears in Collections:工业信息学研究室_会议论文

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张北伟; 胡琨元; 朱云龙.Spectrum Allocation in Cognitive Radio Networks Using Swarm Intelligence.见:IEEE COMPUTER SOC.SECOND INTERNATIONAL CONFERENCE ON COMMUNICATION SOFTWARE AND NETWORKS: ICCSN 2010, PROCEEDINGS,LOS ALAMITOS,2010,8-12
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