无线电工程2012，Vol.42Issue(10)：20-22,3.
基于D-S证据理论的循环平稳频谱协作感知
Cyclostationary Spectrum Collaborative Sensing Based on D-S Evidence Theory
摘要
Abstract
To avoid interfering with the communication of licensed users, excellent performance of spectrum sensing is required for cognitive radio systems. A spectrum collaborative sensing technique based on cyclostationary signatures and D-S evidence theory for multiple antennas and multiple users is proposed. The spectrum correlation function of signals received by multiple antennas is ana- lyzed, and the spectrum correlation function of combined signals is obtained through maximal ratio combination of each received signal in frequency domain. Based on the energy of spectrum correlation function,collaborative spectrum sensing is performed according to D- S evidence theory for multiple cognitive users. The simulation and analysis indicate that the spectrum collaborative sensing technique based on cyclostationary signatures and D-S evidence theory for multiple antennas and multiple cognitive users can improve the perform- ance of spectrum sensing in cognitive radio system.关键词
认知无线电/循环平稳特征/证据理论/最大比合并/协作检测Key words
cognitive radio/cyclostationary signatures/evidence theory/maximal ratio combination/collaborative detection分类
信息技术与安全科学引用本文复制引用
陈新永,杨瑞娟,李晓柏,谢超..基于D-S证据理论的循环平稳频谱协作感知[J].无线电工程,2012,42(10):20-22,3.
