Research Article
Performance Improvement of OFDM by 2-Dimensional Wavelet Transform in Flat Fading Channel
@INPROCEEDINGS{10.4108/ICST.MOBIMEDIA2008.3983, author={Salih M. Salih and Mohammed A. Hussein and Abdul-Salam M. Abboud}, title={Performance Improvement of OFDM by 2-Dimensional Wavelet Transform in Flat Fading Channel}, proceedings={4th International ICST Mobile Multimedia Communications Conference}, publisher={ICST}, proceedings_a={MOBIMEDIA}, year={2010}, month={5}, keywords={Two-Dimensional Wavelet Transform OFDM Flat Fading AWGN.}, doi={10.4108/ICST.MOBIMEDIA2008.3983} }- Salih M. Salih
Mohammed A. Hussein
Abdul-Salam M. Abboud
Year: 2010
Performance Improvement of OFDM by 2-Dimensional Wavelet Transform in Flat Fading Channel
MOBIMEDIA
ICST
DOI: 10.4108/ICST.MOBIMEDIA2008.3983
Abstract
In this paper, a new structure was proposed by replacing the blocks of the fast Haar Wavelet Transform (WT) with a two dimensional wavelet transform at the transmitter and the receiver sides in the Orthogonal Frequency Division Multiplexing (OFDM) model. This can be done by converting a 1-Dimensional vector into a 2-dimentional matrix and process it by 2-Dimentional wavelet transform (2-DWT). The proposed method was applied on the OFDM in Additive White Gaussian Noise (AWGN) and flat fading channel. It was concluded that the proposed method gives much better Bit Error Rate (BER) performance than the conventional OFDM model based on WT. The simulation results showed that the new structure outperforms the other scheme in the carried tests at the AWGN and flat fading channels.