电讯技术2017，Vol.57Issue(11)：1233-1239,7.DOI:10.3969/j.issn.1001-893x.2017.11.001
LAT模型中基于次用户权值优化的频谱感知
Spectrum Sensing for Listen-and-Talk( LAT) Protocol Based on SUs' Weights Optimized
摘要
Abstract
The full duplex cognitive radio Listen-and-Talk(LAT) protocol performs unsatisfactory spec-trum sensing ability due to the imperfect self-interference cancellation. To improve spectrum sensing abili-ty,a cooperative spectrum sensing method based on secondary users'( SUs') weights optimized is proposed, and the decision fusion and data fusion are discussed respectively. Convex optimization is used to solve the weights. When dealing with non convex problems, the method of Sequential Cone Programming algorithm is proved efficient. Simulation results show that the spectrum sensing ability of LAT protocol with fusion optimized nearly obtains the sensing ability of Listen-before-Talk( LBT) protocol.关键词
全双工/认知无线电/协作式频谱感知/能量检测/凸优化Key words
full duplex/cognitive radio/cooperative spectrum sensing/energy detection/convex optimi-zation分类
信息技术与安全科学引用本文复制引用
俞启明,金虎,刘轶凡..LAT模型中基于次用户权值优化的频谱感知[J].电讯技术,2017,57(11):1233-1239,7.
