Open Access

Concurrent blind channel equalization with phase transmittance RBF neural networks

  • Diego Vier Loss1,
  • Maria Cristina Felippetto De Castro1,
  • Paulo Roberto Girardello Franco1 and
  • Fernando César Comparsi de Castro1
Journal of the Brazilian Computer Society13:BF03192398

https://doi.org/10.1007/BF03192398

Abstract

This paper presents a new complex valued radial basis function (RBF) neural network (NN) with phase transmittance between the input nodes and output, which makes it suitable for channel equalization on quadrature digital modulation systems. The new Phase Transmittance RBFNN (PTRBFNN) differs from the classical complex valued RBFNN in that it does not strictly rely on the Euclidean distance between the input vector and the center vectors, thus enabling the transference of phase information from input to output. In the context of blind channel equalization, results have shown that the PTRBFNN not only solves the phase uncertainty of the classical complex valued RBFNN but also presents a faster convergence rate.comes the abstract of the paper.

Keywords

Neural Network Equalizer Phase Concurrent Blind