An Equalization Method for TDS-OFDM Systems over Fast Fading Channels

被引：0
|
作者：
Gong, Guoqiang [1 ]
Ge, Wancheng [2 ]
机构：
[1] Univ Tongji China, Sch Elect & Informat Engn, Shanghai, Peoples R China
[2] Tongji Univ, Chinese German Sch for Postgrad Studies, Shanghai, Peoples R China
来源：
NSWCTC 2009: INTERNATIONAL CONFERENCE ON NETWORKS SECURITY, WIRELESS COMMUNICATIONS AND TRUSTED COMPUTING, VOL 1, PROCEEDINGS | 2009年
关键词：
orthogonal frequency division multiplexing (OFDM); time-varying channel; channel estimation; channel equalization; DIVERSITY; TRANSMISSIONS;
D O I：
10.1109/NSWCTC.2009.209
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A decision feedback equalization method with basis expansion models (BEM) for time domain synchronization (TDS) OFDM systems is proposed. The initial values of model parameters are estimated by known pseudo-noise (PN) sequences and a decision feedback algorithm is used to modify the precision of models, the more accurate channel values are obtained by using the higher order model. Simulation results show that the method in this paper can resist the multi-path interference and Doppler frequency shift very good; comparing the traditional channel estimation algorithm such as PN self-correlation and linear interpolation algorithms, the equalization method in this paper can improve the system performance better.
引用
收藏
页码：133 / +
页数：2
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