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定价机制下认知无线电网络频谱接入算法
引用本文:王钢,曾禛. 定价机制下认知无线电网络频谱接入算法[J]. 哈尔滨理工大学学报, 2014, 0(2): 115-119,124
作者姓名:王钢  曾禛
作者单位:[1]哈尔滨工业大学通信技术研究所,黑龙江哈尔滨150001 [2]哈尔滨理工大学国家大学科技园,黑龙江哈尔滨150080
摘    要:
为了研究认知无线电网络中认知用户频谱接入的决策问题,将认知用户的频谱接入过程视为非合作博弈过程,并考虑到授权用户享有频谱的优先使用权,基于带有服务台故障的M/G/1排队理论建立了系统模型,分析了认知用户个体最优接入策略和社会最优接入策略,并在此基础上提出定价机制使认知用户追求个体利益最大化的目标与社会目标一致,实现社会福利最大化.实验结果表明,基于定价机制的频谱接入策略可以使频谱资源得到相对的优化配置,满足社会整体利益需求.

关 键 词:认知无线电  频谱接入控制  非合作博弈  定价机制

Price-based Spectrum Access Algorithm in Cognitive Radio Networks
WANG Gang,ZENG Zhen. Price-based Spectrum Access Algorithm in Cognitive Radio Networks[J]. Journal of Harbin University of Science and Technology, 2014, 0(2): 115-119,124
Authors:WANG Gang  ZENG Zhen
Affiliation:(Communication Research Center, Harbin Institute of Technology, Harbin 150001, China;National Science Park, Harbin University of Science and Technology, Harbin 150080, China)
Abstract:
To solve the spectrum access decision problem in cognitive radio networks (CRNs),the spectrum access procedure of secondary users (SUs) can be modeled as a non-cooperative game.In view of the fact that the primary user(PU) has higher priority to access the radio spectrum,this paper set up the system model based on the M/G/1 queueing theory with server breakdowns and analyzed the individual optimization strategy and social optimization strategy separately.Based on the analysis results,this paper proposed a pricing scheme to achieve the goal that Nash equilibrium actions of SUs lead to social welfare maximization.The simulation results indicate that the price-based spectrum access strategy can improve the efficiency of spectrum resource allocation and satisfy the need of the whole society.
Keywords:cognitive radio  spectrum access control  non-cooperative game  pricing scheme
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