Channel Estimation and Channel Equalization for the OFDM-Based WLAN Systems

Author

Zheng, Zi-Wei

Author_Institution

Coll. of Inf. Sci. & Eng., Ningbo Univ., Ningbo, China

fYear

2010

fDate

7-9 May 2010

Firstpage

1691

Lastpage

1694

Abstract

Orthogonal frequency division multiplexing (OFDM) is an effective technique for combating radio channel multipath fading and for high-bit-rate transmission over wireless channels and it is extensively used in modern wireless local area network systems to support high performance bandwidth-efficient multimedia services. Easily applied channel estimation and simple channel equalization are important for the broadband multi-carrier OFDM systems and are crucial to the performance of the overall OFDM system in terms of the symbol error rate. In this paper, robust channel estimation and channel equalization scheme is proposed for the OFDM based wireless local area network systems. The performance analysis of the proposed channel estimation and channel equalization scheme are also provided.

Keywords

OFDM modulation; channel estimation; fading channels; multipath channels; wireless LAN; OFDM-based WLAN systems; channel equalization; channel estimation; high-bit-rate transmission; multimedia services; orthogonal frequency division multiplexing; radio channel multipath fading; symbol error rate; wireless channels; wireless local area network; Channel estimation; Equations; Frequency response; Mathematical model; OFDM; Signal to noise ratio; Wireless LAN; Channel estimation; channel equalization; orthogonal frequency division multiplexing; wireless local area network;

fLanguage

English

Publisher

ieee

Conference_Titel

E-Business and E-Government (ICEE), 2010 International Conference on

Conference_Location

Guangzhou

Print_ISBN

978-0-7695-3997-3

Type

conf

DOI

10.1109/ICEE.2010.428

Filename

5593066