电讯技术2017，Vol.57Issue(12)：1363-1368,6.DOI:10.3969/j.issn.1001-893x.2017.12.003
认知车载网的频谱感知性能分析
Performance Analysis of Spectrum Sensing in Cognitive Vehicular Networks
摘要
Abstract
Different fading propagation channels in cognitive vehicular network affect the performance of spectrum sensing. In order to illustrate a general description of performance of spectrum sensing under dif-ferent fading channels, detection probabilities of single-user energy and cooperative energy are analyzed under the conditions of additive white Gaussian noise ( AWGN ) channel and Rayleigh fading channel as well as Nakagami-m fading channel,with emphasis on the influence of such parameters as fading factor, number of secondary vehicles and signal-to-noise ratio( SNR) concerning the Nakagami-m fading channel on the performance of cooperative spectrum. Simulated results show that the accurate understanding of dif-ferent channel characteristics can be helpful to improve the detection probability of spectrum between vehi-cles under different fading channel environment.关键词
车载自组织网络/认知无线电/瑞利衰落信道/Nakagami-m衰落信道/频谱感知Key words
vehicular ad hoc network( VANET)/cognitive radio/Rayleigh fading channel/Nakagami-m fa-ding channel/spectrum sensing分类
信息技术与安全科学引用本文复制引用
成峰,章国安,金喜龙..认知车载网的频谱感知性能分析[J].电讯技术,2017,57(12):1363-1368,6.基金项目
国家自然科学基金资助项目(61371113,61401241) （61371113,61401241）
交通运输部应用基础研究基金资助项目(2013-319-825-110) （2013-319-825-110）
