重庆邮电大学学报（自然科学版）2016，Vol.28Issue(5)：672-679,8.DOI:10.3979/j.issn.1673-825X.2016.05.010
基于用户集合势估计的认知无线电合作频谱感知
User set cardinality estimation based cooperative spectrum sensing in cognitive radio
摘要
Abstract
Spectrum sensing is a basic function of cognitive radio systems,and the premise on which dynamic access to li-censed spectrum and spectrum sharing are realized.In this paper,cooperative spectrum sensing scheme based on user set cardinality estimation in cognitive radio network is proposed.The scheme aims to estimate the set cardinality,which is opti-mal user number,fitting for participating in cooperative spectrum sensing through GEEF and SPEEF algorithms,then select corresponding spectral observation data to take part in generating final global test statistic,and finally make decisions about the existence of primary users by comparing with the decision threshold.Theoretical analysis and experimental results verify that the proposed algorithm can effectively improve the performance of spectrum sensing.关键词
认知无线电/合作频谱感知/用户集合势估计/用户选择Key words
cognitive radio/cooperative spectrum sensing/user set cardinality estimation/user selection分类
信息技术与安全科学引用本文复制引用
申滨,高凯,黄晓舸,陈前斌..基于用户集合势估计的认知无线电合作频谱感知[J].重庆邮电大学学报（自然科学版）,2016,28(5):672-679,8.基金项目
国家自然科学基金项目 （）
