跳频多址通信系统频谱效率分析  

Spectral efficiency of FHMA communication systems

作　　者：刘传清[1] 蒋晓航[1] 

机构地区：[1]华中科技大学电信系

出　　处：《南阳师范学院学报》2006年第3期25-28,共4页Journal of Nanyang Normal University

基　　金：湖北省教育厅重点项目(2004D001)

摘　　要：跳频多址FH-CDMA具有很强的抗干扰和低截获、低检测能力(LPI/LPD),抗频率选择性衰落,抗远近效应等优点,已受到广泛关注.分析了多小区瑞利衰落环境下的FHMA系统的频谱效率,结果表明:快跳频可以通过频率分集作用,提高FHMA系统频谱效率.The frequency-hopping code-division multiple-access （FH-CDMA） system have recently received wide attention, owing to its anti-jamming and low probability of interception and low detection capability, and the advantage of resistant frequency-select fading and near-far resistant. We have analyzed the frequency efficiency of FHMA in Rayleighfading environment. The results show that FFH-CDMA have frequency-diversity potential and can implement diversity receive and increase the frequency efficiency of cellular FHMA communication systems. frequency

关 键 词：跳频多址 频谱效率 蜂窝通信 瑞利衰落 

分 类 号：TN914.4[电子电信—通信与信息系统]