[1]黄川,郑宝玉.一种新型认知无线电信道状态的预测算法[J].华侨大学学报(自然科学版),2010,31(5):521-525.[doi:10.11830/ISSN.1000-5013.2010.05.0521]
　HUANG Chuan,ZHENG Bao-yu.A Novel Channel State Prediction Algorithm of Cognitive Radio[J].Journal of Huaqiao University(Natural Science),2010,31(5):521-525.[doi:10.11830/ISSN.1000-5013.2010.05.0521]
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一种新型认知无线电信道状态的预测算法()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第31卷
期数:
2010年第5期
页码:
521-525
栏目:
出版日期:
2010-09-20

文章信息/Info

Title:
A Novel Channel State Prediction Algorithm of Cognitive Radio
文章编号:
1000-5013(2010)05-0521-05
作者:
黄川; 郑宝玉
南京邮电大学信号处理与传输研究院; 福建师范大学数学与计算机科学学院
Author(s):
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
关键词:
认知无线电;  多无线电;  多信道;  马尔科夫模型;  频谱侦测
Keywords:
cognitive radio;  multi-radio;  multi-channel;  Markov model;  spectrum sensing
分类号:
TN014
DOI:
10.11830/ISSN.1000-5013.2010.05.0521
文献标志码:
A
摘要:
基于部分可测马尔科夫决策过程(POMDP)模型,结合认知无线电频谱侦测技术,提出一种新的多无线电多信道环境下认知无线电检测信道算法.该算法通过对信道状态历史信息的分析,推导出信道信念状态的初始分布和转移概率; 然后,以此选择出具有最佳回报的信道以供接入,使得次用户能获得最佳带宽回报,从而达到提高信道利用率的目的.仿真结果表明,算法获得相对于传统认知无线电频谱接入方式更高的信道带宽,并接近无漏检和虚警现象的理想情况,有效地提高了信道利用率.
Abstract:
Based on the theory of partially observable Markov decision process(POMDP) model,a novel cognitive radio channel sensing algorithm integrated with spectrum sensing technique for cognitive radio under multi-radio multi-channel enviroment.By the analysis of the channel state historical information,the initial distribution of the belief state and transition probability is derived and the channel with optimal reward is selected for unlicensed user to improve the spectrum utilization.The simulation results demonstrate that the proposed algorithm has better performance than classical algorithms.

参考文献/References:

[1] AKYILDIZ I, LEE W Y, VURAN M C. A survey on spectrum management in cognitive radio networks [J]. IEEE Communications Magazine, 2008(4):40-48.
[2] ZHAO Q, TONG L, SWAMI A. Decentralized cognitive MAC for opportunistic spectrum access in ad hoc networks:A POMDP framework [J]. IEEE Journal on Selected Areas in Communications, 2007(3):589-600.doi:10.1109/JSAC.2007.070409.
[3] CHEN Y X, ZHAO Q, SWAMI A. Joint design and separation principle for opportunistic spectrum access in the presence of sensing errors [J]. IEEE Transactions on Information theory, 2008(5):2053-2071.doi:10.1109/TIT.2008.920248.
[4] PIAO G, DAVID K. Multi-standard radio resource management for integrated voice and data services [A]. Dublin:IEEE, 2007.990-995.
[5] KAELBLING L P, LITTMAN M L, CASSANDRA A R. Planning and acting in partially observable stochastic domains [J]. A Rtificial Intelligence, 1998(1):99-134.doi:10.1016/S0004-3702(98)00023-X.
[6] SMALLWOOD R D, SONDIK E J. The optimal control of partially observable Markov processes over a finite horizon [J]. Operations Research, 1973(5):1071-1088.doi:10.1287/opre.21.5.1071.

备注/Memo

备注/Memo:
国家自然科学基金资助项目(60972039)
更新日期/Last Update: 2014-03-23