计算机与数字工程2017，Vol.45Issue(4)：616-619,649,5.DOI:10.3969/j.issn.1672-9722.2017.04.004
基于不确定感知的主动式频谱切换算法研究
Proactive Spectrum Handoff Algorithm Based on Uncertain Sensing
摘要
Abstract
In the actual cognitive radio network, there exist the inevitable non-ideal spectrum detection such as false alarm and missed detection which may lead to the inaccurate spectrum handoff and cause more uncertain problems.Based on the hidden Markov model, this paper considers the non-ideal spectrum detection and utilizes the false alarm and missed probabilities to modify the sensory information and to improve the prediction accuracy.Furthermore, an improved algorithm as well as the corresponding handoff strategy are proposed to calculate the channel remaining idle time.The simulation results show that the proposed algorithm has a better performance under different false alarm probabilities.关键词
认知无线电/频谱切换/非理想感知/信道剩余空闲时间Key words
cognitive radio/spectrum handoff/non-ideal spectrum detection/remaining idle time分类
信息技术与安全科学引用本文复制引用
曹型兵,焦中帅..基于不确定感知的主动式频谱切换算法研究[J].计算机与数字工程,2017,45(4):616-619,649,5.基金项目
国家科技重大专项基金项目(编号:2015ZX03001033-002) （编号:2015ZX03001033-002）
长江学者和创新团队发展计划(编号:IRT1299,cstc2013yykfA40010) （编号:IRT1299,cstc2013yykfA40010）
重庆市科委重点实验室专项经费资助. （）
