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.
作者
黄丛伟
HUANG Congwei(Jiangsu Mobile Communications Co., Ltd , Suzhou Branch, Suzhou 215006, China)
出处
《江苏通信技术》
2003年第1期25-28,共4页
Jiangsu Communication 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
fixed broadband wireless access
orthogonal frequency division multiplexing
multi-carrier modulation
code division multiple access
