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引用本文：

文凯,付玲生,傅小玲.认知无线电系统中利用模糊逻辑的频谱分配[J].电讯技术，2011，51（3）： - . [点击复制]
WEN Kai,FU Ling-sheng,FU Xiao-ling.Spectrum Allocation Using Fuzzy Logic for Cognitive Radio Systems[J].，2011，51（3）： - . [点击复制]

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认知无线电系统中利用模糊逻辑的频谱分配
文凯,付玲生,傅小玲
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(重庆邮电大学重庆信科设计有限公司，重庆 400065;重庆邮电大学通信新技术应用研究所，重庆 400065)

摘要:

为了较全面地分析频谱分配问题，突出系统的效益和公平性能，提出了一种利用模糊逻辑的认知无线电频谱分配方案。首先给出模糊逻辑系统（FLS）的概念，然后利用FLS综合分析感知空闲频谱和次用户的特性，最后结合系统吞吐量最大、公平性和随机分配3种准则将空闲频谱分配给次用户使用。仿真结果证实了方案的可行性。

关键词: 认知无线电频谱分配模糊逻辑系统吞吐量

DOI：

基金项目:

Spectrum Allocation Using Fuzzy Logic for Cognitive Radio Systems

WEN Kai,FU Ling-sheng,FU Xiao-ling

(Chongqing Information Technology Designing Co., Ltd., Chongqing University of Posts and Telecommunications,Chongqing 400065,China;Institute of the Applications of Adv anced Telecommunications Technology,Chongqing University of Posts and Telecommunications,Chongqing 4000 65,China)

Abstract:

To analyse spectrum allocation issue more comprehensively and highlight the perf ormances of effectiveness and fairness of the system, a spectrum allocation sche me using fuzzy logic for cognitive radio(CR) is proposed.First the concept of fu zzy logic system(FLS) is given, and then the FLS is used to comprehensively anal yse the characteristics of the perceived idle spectrum and the secondary users， finally the idle spectrum is allocated to secondary users in accordance with sys tem throughput maximum, fairness and random allocation criteria.Simulation resul ts confirm the feasibility of scheme.

Key words: cognitive radio(CR) spectrum allocation fuzzy logic system throughput