Title :
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
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;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2005 IEEE 6th Workshop on
Print_ISBN :
0-7803-8867-4
DOI :
10.1109/SPAWC.2005.1505888
