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To achieve low Bit Error Rate (BER) communication a new fast adaptive equalization technique in Decision Directed (DD) mode is proposed in this paper. The output of the equalizer is quantized to get the desired update signal and a new error term is defined based on a probabilistic scheme. The main feature of this technique is that it achieves low BER comparable to turbo equalizer with less computational...
The design of a Chebyshev functional link artificial neural networks (CFLANN) based channel equalizer in digital communication systems is discussed in this paper. The design has been successfully applied to digital communication systems in which 16-QAM modulated signals are transmitted. To improve equalizer performance, a decision feedback mechanism is used in the networks (DF-CFLANN). But the computational...
This paper introduces a space-time decision feedback equalizer whose coefficients are recursively renewed on the basis of the modified affine projection algorithm (APA). Despite its effectiveness against a rank-deficiency problem, the complexity of the conventional APA utilizing the sample matrix inversion is considerable. Furthermore, the shift invariance property could not be exploited in the case...
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