Title :
A new neural equalizer for decision-feedback equalization
Author :
Chen, Zhe ; Lima, Antonio C de C
Author_Institution :
Adaptive Syst. Lab, McMaster Univ., Hamilton, Ont.
fDate :
Sept. 29 2004-Oct. 1 2004
Abstract :
In this paper, we propose a simple but powerful neural decision-feedback equalizer trained with a fast-converging adaptive filter algorithm, which is efficient, simple, and numerically robust. The equalizer can be viewed as a neuron with fixed or adaptive sigmoidal nonlinearity. The simulation results on various time-invariant and time-varying channel equalization benchmarks have shown its surprisingly good performance compared to other sophisticated neural network-based equalizers. The empirical results have demonstrated the potential values of the proposed neuronal equalizers in practice
Keywords :
adaptive equalisers; adaptive filters; decision feedback equalisers; neural nets; time-varying channels; adaptive sigmoidal nonlinearity; decision-feedback equalization; fast-converging adaptive filter algorithm; neural equalizer; neuronal equalizer; time-invariant channel equalization benchmark; time-varying channel equalization benchmark; Adaptive filters; Bit error rate; Decision feedback equalizers; Fading; Hardware; Neurons; Nonlinear filters; Robustness; Testing; Time-varying channels;
Conference_Titel :
Machine Learning for Signal Processing, 2004. Proceedings of the 2004 14th IEEE Signal Processing Society Workshop
Conference_Location :
Sao Luis
Print_ISBN :
0-7803-8608-4
DOI :
10.1109/MLSP.2004.1423032