Analysis of Timing Error in TDD Phase Pre-Equalization OFDM Systems

LIU Da-wei; TANG You-xi; LI Shao-qian

您当前的位置：

首页 >

文章列表页 >

Analysis of Timing Error in TDD Phase Pre-Equalization OFDM Systems

更新时间：2025-07-16

- Analysis of Timing Error in TDD Phase Pre-Equalization OFDM Systems
- Acta Electronica Sinica Vol. 32, Issue S1, Pages: 136-140(2004)
- 作者机构：
  
  电子科技大学通信抗干扰技术国家级重点实验室,四川,成都,610054
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN914.4
- Published：2004
- 稿件说明：
移动端阅览
LIU Da-wei, TANG You-xi, LI Shao-qian. Analysis of Timing Error in TDD Phase Pre-Equalization OFDM Systems[J]. Acta Electronica Sinica, 2004, 32(S1): 136-140.
DOI：

LIU Da-wei, TANG You-xi, LI Shao-qian. Analysis of Timing Error in TDD Phase Pre-Equalization OFDM Systems[J]. Acta Electronica Sinica, 2004, 32(S1): 136-140. DOI：

摘要

研究了在多径瑞利衰落环境中

抽样定时误差对相位调制的时分双工(TDD)预均衡正交频分多路复用系统(OFDM)的误码率性能影响.给出了理想和非理想相位预均衡处理的误码率解析表达式

并进行了计算机仿真

仿真和理论分析相符.对于TDD相位预均衡OFDM系统

定时误差导致了解调数据的相位旋转

且系统性能随定时误差的增加呈加速恶化的趋势.与无定时误差的瑞利衰落性能上界相比

当归一化定时误差为1/8时

理想和非理想相位预均衡的性能分别损失了约1dB和3dB;归一化定时误差为1/4时

二者的性能均严重恶化且差距减小

这时候定时误差成为影响系统性能的主要因素.

Abstract

The impact of timing error on the receiver's BER performance of TDD phase pre-equalized OFDM systems is investigated.The analytic BPSK BER expressions of ideally and nonideally pre-equalized OFDM systems in multi-path Rayleigh fading environments are obtained.The corresponding simulations verify the analytic expressions.Compared with the theoretical system performance bound of Rayleigh fading

the performances of ideal and nonideal pre-equalization entail loss of 1dB and 3dB respectively

when the normalized timing error is 1/8.When it is 1/4

both of the two systems' performances degrade severely.At the same time

the gap between them diminishes.In that case

timing error becomes dominant among those elements which would affect systems performance.

关键词

Keywords

references

Views

1007

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Channel Estimation Scheme Using Superimposed Training Sequences with Low Power

Location Sensing Empowered Superimposed Pilot Transmission Assisted by Reconfigurable Intelligent Surface

An Accurate DOA Estimation Method for mmWave Large-Scale Antenna Arrays

Differential Coding and Neural Network-Aided Channel Estimation in OFDM Systems

Intelligent Channel Estimation of SC-FDMA Based on GNN for V2I Scenarios in Internet of Vehicles

Related Author

LUO Ren-ze

CHEN Ning

ZHOU Guo-Tong

ZHAO Ben

XIA Wen-chao

ZHAO Hai-tao

NI Yi-yang

ZHU Hong-bo

Related Institution

School of Electrical and Computer EngineeringGeorgia Institute of TechnologyAtlantaGA USA

Department of Electronic EngineeringUniversity of Electronics Science and Technology of ChinaChengduSichuan 610054China

School of Electrical and Computer Engineering,Georgia Institute of Technology

Department of Electronic Engineering,University of Electronics Science and Technology of China

Jiangsu Provincial Key Laboratory of Wireless Communications and Internet of Things, Nanjing University of Posts and Telecommunications

⁰