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新的认知无线电功率控制博弈算法 被引量:16

Novel power control game algorithm for cognitive radios
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摘要 针对认知无线电系统中各种用户通信需求,采用多载波的码分多址(MC-CDMA)认知无线电(CR)系统,研究如何克服认知用户对主用户干扰和通信中断问题,给出了一种认知用户切换策略,为实现认知频谱资源的有效分配,提出了一种新的认知无线电功率控制算法。仿真结果表明,该算法既满足不同种类用户SIR要求,又达到了系统吞吐量的提高,实现了对不同用户发射功率有效控制,系统性能明显提高。 To meet the communications needs between licensed users and secondary users in cognitive radios and to ensure that the unimpaired operation of licensed users and secondary users' communications be not intermitted, a MC-CDMA cognitive radios system and a hand-off technique were proprosed for secondary users. In order to efficiently use the limited cognitive radio resources, a novel power control game algorithm in CR systems was adopted. The simulation results show that the novel algorithm can regulate their transmitter powers to meet the different SIR requirements and enhance the total throughput effectively. The performance of CR system is thereby improved obviously.
出处 《通信学报》 EI CSCD 北大核心 2007年第3期100-107,共8页 Journal on Communications
基金 教育部重点科技基金资助项目(206055) 江苏省高校自然科学重大基础研究资助项目(06KJA51001)~~
关键词 认知无线电 功率控制 信干比 吞吐量 博弈论 cognitive radio power control signal-to-interference ratio throughput game theory
作者简介 程世伦(1974-),男,山东沂水人,南京邮电大学博士生,主要研究方向为无线通信与网络信号处理。 杨震(1961-),男,江苏苏州人,博士,南京邮电大学教授、博士生导师,主要研究方向为无线通信与网络信号处理、语音处理与现代语音通信技术、信息安全枯术。 张晖(1982-)男,山东济宁人,南京邮电大学博士生,主要研究方向为adhoc网络QoS保障。
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参考文献12

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