Interference cancellation based receive scheme to combat ICI for OFDM systems

Author

Zhou, Zhigang ; Zhang, Xiaodong ; Bu, Zhiyong

Author_Institution

Shanghai Res. Center for Wireless Commun., China

Volume

1

fYear

2005

fDate

23-26 Sept. 2005

Firstpage

257

Lastpage

260

Abstract

In his paper, we analyses and proposes a new receiver structure to mitigate the effect of interchannel interference (ICI) on the reception of OFDM signals. The system operates in a frequency selective Rayleigh fading channel. Interchannel interference is caused by the time variations in channel gain within OFDM symbol and leads to an error floor, which is a function of Doppler frequency. In this study, it was found that by performing parallel interference cancellation at the receiver, we were able to significantly reduce the error floor.

Keywords

OFDM modulation; Rayleigh channels; adjacent channel interference; interference suppression; radio receivers; Doppler frequency; ICI; OFDM systems; channel gain; frequency selective Rayleigh fading channel; interchannel interference; interference cancellation; receiver structure; Convolution; Data communication; Delay effects; Fading; Interchannel interference; Interference cancellation; Intersymbol interference; Multimedia systems; OFDM modulation; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2005. Proceedings. 2005 International Conference on

Print_ISBN

0-7803-9335-X

Type

conf

DOI

10.1109/WCNM.2005.1544030

Filename

1544030