A New Adaptive Equalization with No Guard Time of OFDM

LV Jun-zhe; ZHANG Hai-lin; HE Fei; LIU Zeng-ji

您当前的位置：

首页 >

文章列表页 >

A New Adaptive Equalization with No Guard Time of OFDM

更新时间：2025-07-16

- A New Adaptive Equalization with No Guard Time of OFDM
- Acta Electronica Sinica Vol. 30, Issue 7, Pages: 941-944(2002)
- 作者机构：
  
  西安电子科技大学ISN国家重点实验室,陕西,西安,710071
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.7
- Published Online：25 July 2002，
  
  Published：2002
- 稿件说明：
移动端阅览
LV Jun-zhe, ZHANG Hai-lin, HE Fei, et al. A New Adaptive Equalization with No Guard Time of OFDM[J]. Acta Electronica Sinica, 2002, 30(7): 941-944.
DOI：

LV Jun-zhe, ZHANG Hai-lin, HE Fei, et al. A New Adaptive Equalization with No Guard Time of OFDM[J]. Acta Electronica Sinica, 2002, 30(7): 941-944. DOI：

摘要

近年来作为一种特殊的多载波调制方式——正交频分复用(OFDM)已得到越来越多的人的关注.对于传统的OFDM系统来说

如果循环前缀的长度大于信道的时延扩散值

则可以通过简单的频域均衡来解调OFDM信号.可是循环前缀的使用却降低了系统的传输效率

如果能压缩甚至去掉循环前缀

而保持系统性能不变

则是很有意义的

为此本文给出了一种新的均衡结构

利用循环迭代手段以减少甚至去掉循环前缀

最后通过计算机模拟

证实了这种结构的有效性.

Abstract

In this paper

a method of equalization of OFDM (Orthogonal Frequency Division Multiplexing) signal is described.If the length of its cyclic prefix is larger than the delay spread of transmission channel

we can get a simple frequency equalizer to demodulate OFDM signal.However

the use of cyclic prefix degrades the efficiency of transmission greatly.For this

we give a new equalizing structure

which improves the efficiency of transmission of OFDM system.And this method is examined by computer and good characteristics are confirmed.

关键词

Keywords

references

Views

1203

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Research on End-to-End Wireless Communication System Based on Two-Dimensional Convolution

A Low Complexity Frequency-Domain Linear Equalization Algorithm Based on Pre-processing in OFDM System

Analysis of the Modulation Effects on OFDM Radar Echoes from Targets with Micro-Motions

The Adaptive Equalization Algorithm for OFDM System Based on the Fractional Fourier Transform

New and Low Complexity Companding Technique for Reducing Peak-to-Average Power Ratio of OFDM Signals

Related Author

ZHOU Xiong

YU Gan-cheng

LIU Jun-jie

LIU Qiao-shou

JIANG Ling-ge

HE Chen

XU Xing-hui

CHEN Yong

Related Institution

School of Communication and Information Engineering， Chongqing University of Posts and Telecommunications

Advanced Network and Intelligent Connection Technology Key Laboratory of Chongqing Education Commission of China

Chongqing Key Laboratory of Ubiquitous Sensing and Networking

Department of Electronic Engineering,Shanghai Jiao Tong University

College of Electronic Science and Engineering, National University of Defense Technology

⁰