| 一种能量有效的认知无线电信道搜索机制研究 |
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| 引用本文： | 黄川,郑宝玉.一种能量有效的认知无线电信道搜索机制研究[J].南京邮电大学学报(自然科学版),2011,31(1):45-51. |
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| 作者姓名： | 黄川 郑宝玉 |
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| 作者单位： | 1. 南京邮电大学,信号处理与传输研究院,江苏,南京,210003;福建师范大学,数学与计算机科学学院,江苏,福州,350007
2. 南京邮电大学,信号处理与传输研究院,江苏,南京,210003 |
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| 摘 要： | 针对当前认知无线电中频谱搜索机制在能量有效方面的不足,提出了一种在瑞利衰落条件下基于部分可测马尔科夫决策过程(POMDP)的多无线电信道搜索机制MRCSS.该机制通过对瑞利衰落环境中信道状态建立POMDP模型来分析和推导出能效最佳信道,并以此指导用户的信道选择.仿真结果表明该机制能较传统搜索机制更有效地减少感知时间和节...
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| 关 键 词： | 频谱感知 瑞利衰落 部分可测马尔科夫决策过程 多无线电 |
Research on Energy Efficient Channel Searching Scheme of Cognitive Radio |
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| HUANG Chuan,ZHENG Bao-yu.Research on Energy Efficient Channel Searching Scheme of Cognitive Radio[J].Journal of Nanjing University of Posts and Telecommunications,2011,31(1):45-51. |
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| Authors: | HUANG Chuan ZHENG Bao-yu |
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| Institution: | HUANG Chuan1,2,ZHENG Bao-yu1 1.Institute of Signal Processing and Transmission,Nanjing University of Posts and Telecommunications,Nanjing 210003,China 2.School of Mathematics and Computer Science,Fujian Normal University,Fuzhou 350007,China |
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| Abstract: | Due to the deficiencies of current schemes in the aspecct of energy efficiency,this paper proposes a novel multi-radio channel searching scheme(MRCSS) based on partially observable Markov decision process(POMDP) in Rayleigh fading environment.This scheme can obtain the optimum energy-efficient channel through analysis and derivation of channel state and thereby conduct unliecensed users' channel selection.The simulation results show the proposed scheme can reduce the searching time and save the energy more ... |
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| Keywords: | spectrum sensing Rayleigh fading partially observable Markov decision process multi-radio |
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