多载波CDMA的三种方案及其特性比较  

Three schemes and their feature comparison of multi-carrier CDMA

作　　者：夏晓南[1] 

机构地区：[1]扬州大学信息工程学院,扬州225009

出　　处：《信息技术》2004年第7期39-41,共3页Information Technology

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系统。本文首先分析了三种多载波CDMA方案的基本原理,然后对它们的系统特性进行了比较。Multi-carrier CDMA is a the effective technique 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 analyzes the basic principles of three kinds of multi-carrier CDMA schemes and then compares their system features.

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：TN929.533[电子电信—通信与信息系统]