Robust Beamforming Algorithm to Co-Channel Interference Cancellation in Space-Time Coded OFDM System

Author

Li, Yu ; Sun, Xu ; Chen, Kangsheng

Author_Institution

Dept. of Electron. Eng., Zhejiang Univ., Hangzhou

fYear

2006

fDate

14-17 Nov. 2006

Firstpage

1

Lastpage

4

Abstract

In this paper, a robust algorithm based on particle filter is proposed to improve the performance of the beamformers with uncertainty or errors in desired direction-of-arrivals (DOAs). In the proposed scheme, DOAs of desired signals are regarded as groups of random particles. Simulation results in a space-time coded orthogonal frequency division multiplexing (STC-OFDM) system show that the proposed algorithm can significantly improve the robustness of the beamformers to combat the co-channel interference over Rayleigh multipath fading channel

Keywords

OFDM modulation; direction-of-arrival estimation; fading channels; filtering theory; interference suppression; multipath channels; radiofrequency interference; space-time codes; DOA; Rayleigh multipath fading channel; STC-OFDM; beamforming algorithm; co-channel interference cancellation; direction-of-arrival; orthogonal frequency division multiplexing system; particle filter; random particle; space-time coding; Acoustical engineering; Array signal processing; Direction of arrival estimation; Interchannel interference; Interference cancellation; OFDM; Particle filters; Radiofrequency interference; Robustness; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 2006. 2006 IEEE Region 10 Conference

Conference_Location

Hong Kong

Print_ISBN

1-4244-0548-3

Electronic_ISBN

1-4244-0549-1

Type

conf

DOI

10.1109/TENCON.2006.343733

Filename

4142408