多载波CDMA技术的分析研究  

Study of Multi-carrier CDMA Techniques

作　　者：颜彪[1] 周平[2] 

机构地区：[1]扬州大学信息工程学院,江苏扬州225009 [2]淮阴师范学院物理系,江苏淮安223001

出　　处：《淮阴师范学院学报（自然科学版）》2004年第1期34-39,共6页Journal of Huaiyin Teachers College;Natural Science Edition

基　　金：江苏省自然科学基金资助项目(BK2001036)

摘　　要：多载波扩频码分多址系统是一种消除符号间干扰的有效技术.它结合了OFDM和CDMA的优点,在高速数据传输时,其抗符号间干扰的性能明显优于传统的单载波CDMA.本文首先介绍了三种多载波CDMA方案的基本原理和它们的特性比较,然后分析了MC CDMA与DS CDMA之间的关系及MC CDMA与OFDM之间的差异.Multi-carrier CDMA is one of the effective techniques to mitigate the ISI. It combines the advantages of OFDM and CDMA, and its capability of combating ISI is obviously better than that of a single-carrier CDMA for the high data rate transmission. This paper introduced the basic principles of three kinds of MC-CDMA schemes and their features comparison. Then, the relationship between MC-CDMA and DS-CDMA,and difference between MC-CDMA and OFDM were discussed.

关 键 词：多载波CDMA 正交频分复用 符号间干扰 信号功率谱 多径时延扩展 

分 类 号：TN914.53[电子电信—通信与信息系统] TN929.533[电子电信—信息与通信工程]