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Performance analyses of communications receivers employing wavelet-domain minimum mean-squared error equalizers
By: Vaz, C.; Daut, D.G.;
2011 / IEEE / 978-1-4577-1180-0
Description
This item was taken from the IEEE Conference ' Performance analyses of communications receivers employing wavelet-domain minimum mean-squared error equalizers ' In this paper the strategy of Minimum Mean-Squared 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.
Related Topics
Discrete Wavelet Transforms
Equalisers
Fading Channels
Least Mean Squares Methods
Monte Carlo Methods
Quadrature Amplitude Modulation
Wavelet-domain Signal Processing
Communications Receivers
Wavelet-domain Minimum Mean-squared Error Equalizers
Discrete Wavelet Transform
Dwt Coefficients
Received Signals
Wavelet-based Receivers
Monte Carlo Simulations
Multipath Fading Channels
16-qam
Faded Signals
Additive White Gaussian Noise
Awgn
Symbol Error Rates
Ser Curves
Dwt-based Mmse Equalization
Discrete Time-domain
Agile Radio Receivers
Discrete Wavelet Transforms
Receivers
Filter Banks
Time Domain Analysis
Equalizers
Low Pass Filters
Mmse
Wavelet Transform
Communications Receiver
Channel Equalization
Awgn
Radio Receivers
Engineering
16-symbol Quadrature Amplitude Modulation