吉林大学学报(信息科学版) ›› 2014, Vol. 32 ›› Issue (4): 350-354.

• 论文 • 上一篇    下一篇

基于数据筛选算法的协作频谱检测系统

王海艳1, 杨春雨1, 郭敏2   

  1. 1. 吉林省军区 通信站, 长春 130011; 2. 吉林大学 通信工程学院, 长春 130012
  • 收稿日期:2014-04-14 出版日期:2014-07-24 发布日期:2014-12-18
  • 作者简介:王海艳(1983—)女, 黑龙江省海伦市人, 吉林省军区助理工程师, 主要从事语音信号处理研究, (Tel)86-18643060806(E-mail)why_0121@163.com。

Cooperative Spectrum Detection System Based on Data Screening Algorithm

WANG Haiyan1, YANG Chunyu1, GUO Min2   

  1. 1. Communication Station, Jilin Provincial Military Command, Changchun 130011, China;2. College of Communication Engineering, Jilin University, Changchun 130012, China
  • Received:2014-04-14 Online:2014-07-24 Published:2014-12-18

摘要:

针对由遮挡导致信号判决错误这一隐藏终端问题, 提出了一种基于法的频谱检测系统。首先, 根据距离值与能量值之间的对应关系, 从众多认知用户信息中筛选出有效认知用户的检测信息组成最佳信息集合。然后, 采用权值合并的方式对最佳信息集合进行融合判决并得到判决输出。实验结果表明, 该算法的检测性能明显优于传统的最优权值合并算法和基于信噪比比较的感知算法。

关键词: 协作频谱检测系统, 隐藏终端, 数据筛选

Abstract:

As to the hidden terminal problem which means wrong result because of occlusion, we develop a cooperative spectrum detection system based on the proposed data screening technology. According to the relationship between the distance and the energy, we screen the detection information of effective cognitive users from all cognitive users to compose the best information collection. We judge the best information collection and get the results by combining the weight. The experimental results show that the detection performance of the proposed method is better than the ones of the traditional optimal weights merging algorithm and the perception algorithm based on signal to noise ratio comparison.

Key words: cooperative spectrum detection system, hidden terminal, data screening

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