Clustering method for cognitive radio user based on the results of spectrum sensing

被引:0
作者
Sun, Jian-Feng [1 ]
Gao, Jin-Chun [1 ]
Liu, Yuan-An [1 ]
Xie, Gang [1 ]
机构
[1] Key Lab. of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications
来源
Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology | 2012年 / 34卷 / 04期
关键词
Cluster; Cognitive radio; Correlation; Spectrum sensing;
D O I
10.3724/SP.J.1146.2011.00301
中图分类号
学科分类号
摘要
User clustering is one of the most important problems because of the difference of the frequency spectrum utilization situation from cognitive users. This paper gives the analysis result of correlation between cognitive radio users and also proposes the clustering algorithm based on this analysis. Considering the real situation, the effects of data quantization are derived and the derivation shows the performance loss could be compensated partly through the increase the number of spectrum bands. Finally, the simulation shows the proposal could perform well whether the data quantization is adopted or not. From the aspect of reliability, accuracy and adaptability, the proposed algorithm, which gives a comprehensive consideration of the spectrum environment and other factors, is more practical than the traditional clustering algorithm based on the geographic location.
引用
收藏
页码:782 / 786
页数:4
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