| 基于OFDM技术的无线通信系统仿真与分析 |
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| 引用本文： | 陶勇,傅洪亮,管爱红.基于OFDM技术的无线通信系统仿真与分析[J].电子质量,2009(8):29-31. |
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| 作者姓名： | 陶勇 傅洪亮 管爱红 |
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| 作者单位： | 河南工业大学信息科学与工程学院,河南,郑州,450001 |
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| 基金项目： | 国家科技支撑计划(2006BAD08B00);;河南省教育厅自然科学研究计划项目(2008A510003);;河南工业大学科研基金(07XZZ009) |
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| 摘 要： | 正交频分复用（OFDM）能够有效地对抗频率选择性衰落，插入循环前缀作为保护间隔可以消除符号间干扰，而采用信道估计能够很好地跟踪无线信道的时变特性，从而减弱信道对系统的影响。文章首先阐述了OFDM系统基本模型，并给出OFDM通信系统仿真模型。在频率选择性信道下用Matlab仿真软件完成对OFDM系统发送、信道、接收等部分以及循环前缀与信道估计关键技术的设计，结合计算机仿真重点研究了循环前缀及信道估计对系统误码率性能的影响，得出了采用循环前缀和信道估计技术可以显著地提高系统性能。
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| 关 键 词： | 正交频分复用 频率选择性 循环前缀 信道估计 |
Simulation and Analysis of Wireless Communication System Based on OFDM Technology |
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| Tao Yong,Fu Hong-liang,Guan Ai-hong.Simulation and Analysis of Wireless Communication System Based on OFDM Technology[J].Electronics Quality,2009(8):29-31. |
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| Authors: | Tao Yong Fu Hong-liang Guan Ai-hong |
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| Affiliation: | Institute of Information Science and Engineering;Henan University of Technology;Henan Zhengzhou 450001 |
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| Abstract: | Orthogonal Frequency Division Multiplexing ( OFDM ) can be used effectively to against the frequency-selective fading , inserting cyclic prefix as guard interval can eliminate inter-symbol interference , and using channel estimation can well track the time-varying characteristics of wireless channel to weaken channel influence for the system . The basic model of OFDM system is firstly analyzed in the paper , besides OFDM communication system simulation model is given , the OFDM system under the frequency se... |
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| Keywords: | OFDM Frequency-selective Cyclic prefix Channel estimation |
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