Channel estimation in Broadband WLAN based on MIMO-OFDM

被引：0

作者：

Guo, H. ^{[1
]}

Wang, L. H. ^{[1
]}

机构：

[1] Henan Polytech Univ Jiaozuo, Sch Comp Sci & Technol, Kaifeng 454003, Peoples R China

来源：

2008 PROCEEDINGS OF INFORMATION TECHNOLOGY AND ENVIRONMENTAL SYSTEM SCIENCES: ITESS 2008, VOL 4 | 2008年

关键词：

WLAN; MIMO-OFDM; channel estimation; time-domain; frequency-domain;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Channel estimation techniques in Broadband WLAN (wireless local area network) based on MIMO-OFDM are investigated. Several time-domain and frequency-domain channel estimation and tracking schemes are proposed, and computer simulations verify their excellent performances in the typical indoor channel. The computational complexity of the time-domain channel estimation technique is very high, but using the optimum training symbols, the complexity of time-domain algorithm can be reduced and the best performance can be attained at the same time. Since the inversion of large matrix and the necessary transformations between frequency-domain and time-domain needed in time-domain scheme is avoided, the complexity of the frequency-domain schemes is reduced dramatically while achieving an accurate channel estimate and tracking.

引用

页码：1114 / 1118

页数：5