Estimation and equalization of communications channels using wavelet transforms

Vaz, Canute

doi:10.7282/t33n23jr

2010

DOI: 10.7282/t33n23jr

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Estimation and equalization of communications channels using wavelet transforms

Canute Vaz¹

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Cited by 5 publications

References 55 publications

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Performance analyses of communications receivers employing wavelet-domain minimum mean-squared error equalizers

Vaz

Daut

2011

2011 5th International Conference on Signal Processing and Communication Systems (ICSPCS)

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In this paper the strategy of Minimum MeanSquared Error (MMSE) equalization of Discrete Wavelet Transform (DWT) coefficients of received signals is applied in communications receivers. Specifically, the performance of such wavelet-based receivers under a diverse range of conditions is systematically evaluated with the use of Monte Carlo simulations. To determine the robustness of this new type of receiver processing strategy multipath fading channels, four different wavelets, and 16-symbol Quadrature Amplitude Modulation (16-QAM) are used. All faded signals are corrupted with Additive White Gaussian Noise (AWGN). For each case the system performance is quantified by Symbol Error Rates (SERs) obtained from the Monte Carlo simulations. The resulting SER curves show that the performance of DWT-based MMSE equalization is similar to the method implemented in discrete time-domain. Hence, DWT-based MMSE equalization is an effective and practicable technique that can be used in communications receivers. In particular the method can be used in agile radio receivers built upon a wavelet-domain signal processing platform.

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Performance analyses of communications receivers employing wavelet-domain minimum mean-squared error equalizers

Vaz

Daut

2011

2011 5th International Conference on Signal Processing and Communication Systems (ICSPCS)

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Effects of wavelet choice in fast-fading channel estimation using wavelet transform-based deconvolution

Vaz

Daut

2011

2011 11th International Symposium on Communications &Amp; Information Technologies (ISCIT)

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Performance of Discrete Wavelet Transform-based deconvolution applied to multipath channel estimation

Vaz¹,

Daut

2012

2012 35th IEEE Sarnoff Symposium

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Estimation and equalization of communications channels using wavelet transforms

Cited by 5 publications

References 55 publications

Performance analyses of communications receivers employing wavelet-domain minimum mean-squared error equalizers

Performance analyses of communications receivers employing wavelet-domain minimum mean-squared error equalizers

Effects of wavelet choice in fast-fading channel estimation using wavelet transform-based deconvolution

Performance of Discrete Wavelet Transform-based deconvolution applied to multipath channel estimation

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