Linear one tap equalizer for the spatial diversity based on GI-less OFDM system

Author

Alayyan, Faisal O. ; Leung, Yee Hong ; Zoubir, Abdelhak M.

Author_Institution

Commun. & Signal Process. Group, Curtin Univ. of Technol., Perth, WA, Australia

fYear

2005

fDate

5-8 June 2005

Firstpage

141

Lastpage

145

Abstract

In this paper, we introduce pre-FFT and post-FFT equalizers for an OFDM system without using a guard interval. Inter-symbol-interference is significantly reduced by adopting virtual sub-carriers. We extend the idea of spatial diversity to the proposed system to obtain high performance equalization in the presence of additive channel noise. The performance of the proposed equalizers is illustrated by computer simulations.

Keywords

AWGN channels; OFDM modulation; channel estimation; diversity reception; equalisers; fast Fourier transforms; intersymbol interference; GI-less OFDM system; additive channel noise; fast Fourier transform; guard interval; intersymbol-interference; linear one tap equalizer; orthogonal frequency division multiplexing; post-FFT equalizer; pre-FFT equalizer; spatial diversity; virtual subcarrier adoption; Additive noise; Australia; Bandwidth; Computer simulation; Digital video broadcasting; Equalizers; Frequency conversion; Intersymbol interference; OFDM; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Advances in Wireless Communications, 2005 IEEE 6th Workshop on

Print_ISBN

0-7803-8867-4

Type

conf

DOI

10.1109/SPAWC.2005.1505888

Filename

1505888