This paper presents a complex valued radial basis function (RBF) network fo
r equalization of fast time varying channels. A new method for calculating
the centers of the REP network is given. The method allows fixing the numbe
r of RBF centers even as the equalizer order is increased so that a good pe
rformance is obtained by a high-order RBF equalizer with small number of ce
nters, Simulations are performed on time varying channels using a Rayleigh
fading channel model to compare the performance of our RBF with an adaptive
maximum-likelihood sequence estimator (MLSE) consisting of a channel estim
ator and a MLSE implemented by the Viterbi algorithm. The results show that
the RBF equalizer produces superior performance with less computational co
mplexity.