Joint Doppler-Frequency Diversity for OFDM Systems Using Hybrid Interference Cancellation in Time-Varying Multipath Fading Channels

Author

Song, Hyungjoon ; Kim, Jihyung ; Nam, Sangho ; Yu, Takki ; Hong, Daesik

Author_Institution

Center for Inf. Technol. of Yonsei Univ., Seoul

Volume

57

Issue

1

fYear

2008

Firstpage

635

Lastpage

641

Abstract

In time-varying fading channels, orthogonal frequency division multiplexing systems suffer severe performance degradation caused by interchannel interference (ICI). We utilize this ICI as a source of diversity by using a new ICI-cancellation algorithm and Wiener filter. The proposed algorithm can support joint Doppler-frequency diversity gain. In addition, both the computational complexity and total detection time are reduced.

Keywords

OFDM modulation; Wiener filters; adjacent channel interference; diversity reception; fading channels; interference suppression; multipath channels; time-varying channels; OFDM systems; Wiener filter; computational complexity; hybrid interference cancellation; interchannel interference; joint Doppler-frequency diversity; orthogonal frequency division multiplexing systems; time-varying multipath fading channels; Hybrid interference cancellation (HIC); OFDM; Wiener filter; Wiener filter (WF); hybrid interference cancellation; joint Doppler-frequency diversity; orthogonal frequency division multiplexing (OFDM); parallel interference cancellation; parallel interference cancellation (PIC); successive interference cancellation;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/TVT.2007.905594

Filename

4357251