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工程科学与技术:2013,45(4):149-155
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认知无线网中基于队列博弈的频谱选择算法
(重庆邮电大学 移动通信教育部工程研究中心)
Spectrum Selection Algorithm of Cognitive Radio Networks Based on Queueing Game
(Mobile Communications Eng.Research Center of the Ministry of Education,Chongqing Univ. of Posts and Telecommunications)
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投稿时间:2013-01-24    修订日期:2013-05-26
中文摘要: 针对认知无线网络中分布式分组数据自适应传输问题,提出了一种新的基于队列博弈的频谱选择算法。该算法将数据传输问题建模成频谱选择的潜在博弈,考虑主用户占用频谱的影响,利用排队理论分析并构建用户效用函数,通过自主调整频谱选择策略实现频谱分配及跨层优化传输时延、分组损失率。仿真对比表明,所提出的算法存在纳什均衡,更有效地降低了分组传输时延及数据损失率,更加快速地收敛到策略均衡点,且具有更小的复杂度。
中文关键词: 认知无线电  博弈论  排队论
Abstract:In order to solve the distributive adaptive packet data transmission issue in cognitive radio network,a novel spectrum selection algorithm based on queueing game was proposed.The data transmission problem was modeled as a potential game of spectrum selection.Considering the influence of delay caused by primary user,the utility function was built based on queueing game.Each second user autonomously adjusted the spectrum choose strategy to get the spectrum allocation and cross-layer optimize the transmission delay and the average packet loss rate.Simulations and analysis showed that this proposed algorithm could reduce average end-to-end delay and average packet loss rate effectively,and converge to strategy equilibrium point more quickly with smaller complexity.
文章编号:201300061     中图分类号:    文献标志码:
基金项目:国家自然科学基金资助项目(61102062);教育部科学技术研究重点资助项目(212145);重庆市科委自然科学基金资助项目(CSTC2011JJA1192);重庆市教委科学技术研究资助项目(KJ110503)
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李方伟,柴源,朱江.认知无线网中基于队列博弈的频谱选择算法[J].工程科学与技术,2013,45(4):149-155.
Li Fangwei,Chai Yuan,Zhu Jiang.Spectrum Selection Algorithm of Cognitive Radio Networks Based on Queueing Game[J].Advanced Engineering Sciences,2013,45(4):149-155.