Adaptive MBER decision feedback multiuser receivers in frequency selective fading channels
Rodrigo C. de Lamare, Raimundo Sampaio‐Neto · IEEE Communications Letters · 2003
In this letter we investigate adaptive minimum bit error rate (BER) decision feedback multiuser receivers for DS-CDMA systems in fast frequency selective Rayleigh fading channels. We examine stochastic gradient adaptive algorithms and introduce fast algorithms for minimizing the BER cost function from training data.