Adaptive equalization for DS-CDMA multi-user communication system using Laguerre filters

• Published in: 2008 International Conference on Control, Automation and Systems : 14-17 October 2008 pp. 1532 - 1535
• Main Authors: Somkur, T., Benjangkaprasert, C.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.10.2008
• Subjects: Adaptive equalizers; Adaptive filters; Bit error rate; DS-CDMA Communication; Error analysis; Finite impulse response filter; IIR filters; Laguerre transversal equalizer; LMS algorithm; Mobile communication; Multiaccess communication; Resonance light scattering; RLS algorithm; Transversal filters
• ISBN: 8995003898; 9788995003893
• DOI: 10.1109/ICCAS.2008.4694476

In this paper proposes an adaptive equalizer using Laguerre transversal filter and a RLS algorithm for adaptation in DS-CDMA mobile communication systems. The Laguerre structure is compromise between the FIR and IIR structures, since the Laguerre structure is always stable. We also analyze the Bit Error Rate (BER) performance of the proposed equalizer and the conventional equalizer. The simulation results show that the performances of the proposed equalizer are better than the conventional equalizer, such as fast convergence and lower BER than the conventional adaptive equalizer for every E b / N 0 value.