Performance of adaptation algorithms in multipath channel equalization for CDMA systems
A.F.C. Vliese, Sergio Lima Netto, Marcello L. R. de Campos, Paulo S. R. Diniz · 2003
In this work, the performance of several adaptation algorithms are investigated for the reception of CDMA signals. Two adaptive receiving frameworks are considered: the standard channel equalization with training sequence, and the fractionally-spaced equalization. Amongst the several widely known adaptation algorithms, we consider the LMS, the RLS, the binormalized data-reusing (BNDR), and the quasi-Newton (QN) algorithms. The overall system behavior is verified in a multiuser environment (15 users), and for several values of the signal-to-noise ratio (SNR). Algorithm performances are measured by the resulting receiving bit error-rate.