Rayleigh衰落信道下多载波DS-CDMA系统性能分析  

Performance analysis of multicarrier DS-CDMA systems in a Rayleigh fading channel

作　　者：徐国雄[1] 甘良才[1] 黄天锡[1] 

机构地区：[1]武汉大学电子信息学院,湖北武汉430079

出　　处：《通信学报》2002年第11期57-64,共8页Journal on Communications

摘　　要：本文基于多载波传输技术, 提出了一种多载波码分多址模型, 并在Rayleigh衰落信道下对其误码性能进行了分析。分析及仿真结果表明:系统具有降低多址干扰的能力, 同传统的单载波直接序列码分多址系统相比, 能支持更大的用户容量。本系统能满足第三代移动通信系统对高速数据传输的要求。In this paper, a multicarrier DS-CDMA system is proposed , based on the theory of multicarrier technique. The system performance over Rayleigh fading channel is evaluated . It is shown that the proposed system has the capability of suppressing multiple-access interference and therefore can support a larger number of users , compared to a conventional single-carrier DS-CDMA system . The proposed systems can be used in high rate data transmission in the third generation mobile communication systems.

关 键 词：多载波 直接序列码分多址 RAYLEIGH衰落 多址干扰 频率分集 移动通信 数据传输 

分 类 号：TN929.533[电子电信—通信与信息系统]