无线接入网中两种关键技术：OFDM与CDMA的比较分析  

A Comparison Analysis of Two Key Technologies for Wireless Access Network: OFDM and CDMA

作　　者：黄丛伟 HUANG Congwei(Jiangsu Mobile Communications Co., Ltd , Suzhou Branch, Suzhou 215006, China)

机构地区：江苏省移动通信有限责任公司苏州分公司，江苏苏州215006

出　　处：《江苏通信技术》2003年第1期25-28,共4页Jiangsu Communication Technology

摘　　要：介绍了无线接入网中的两种关键技术，OFDM（正交频分复用）和CDMA（码分多址），从调制技术，抗干扰能力，功率控制、网络规划，峰均功率比和均衡技术等方面全面系统地比较分析了OFDM和CDMA各自的优缺点，结果证明了OFDM技术的先进性及其令人瞩目的应用前景。Two multiple access techniques are analyzed in the context of this paper: Orthogonal frequency division multiplexing (OFDM) and code division multiple access (CDMA). It looks at OFDM and CDMA from a number of viewpoints. The foremost is from the fundamental properties of them to determine the benefits and disadvantages of each, and then the practical issues in implementing them are considered. Finally we can get a conclusion that OFDM is the most important technology for a future public cellular radio access technology.

关 键 词：OFDM CDMA 固定无线接入 正交频分复用 多载波调制 码分多址 

分 类 号：TN925.93[电子电信—通信与信息系统;电子电信—信息与通信工程]