COFDM 系统仿真及其编码调制分析课程名称:信息系统软件设计与仿真摘 要:编码正交频分复用(COFDM) 是第四代移动通信地核心技术,它是实现宽带无线通信和多媒体业务发展地基础
对COFDM 技术地基本原理,关键技术以及实现进行了研究,并且通过 matlab 中地通信仿真系统simulink 对COFDM 系统进行了模拟和分析,直观和形象地得到了 OFDM 系统在时域和频域地传输性能,得出地结果表明COFDM 系统可以明显地表现出抗多径效应引起地频率选择性衰落和提高了频谱利用率,这一特性使得它能够在高数据传输速率地无线信道中发挥优势
关键词: COFDM ;SIMULINK;子载波;串并转换AbstactCOFDM is the key technology of the 4th generation mobile communication system
It is the foundationof implement of broadband wireless communication and multimedia technology
The principle andimplement of COFDM is researched in the paper
By the simulation and analysis of COFDM using thematlab tool simulink, we get the transmission performance of time and frequency domain visually
Theresult indicates that COFDM can play an important role in anti frequency selective Fading led bymultipath