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WPSS Communication System Based on CRBF Network Equalizers

  • Lei Zhou
  • Jian-Dong Li
  • Peng He
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4113)

Abstract

In this paper, novel wavelet packet spread spectrum (WPSS) communication system based on the complex radial basis function (CRBF) network equalizers is studied for multipath fading channels. The complex radial basis function network equalizers technique is adopted to suppress Inter-Symbol Interference (ISI) caused by multipath fading channels and reduce the symbol error rate (SER). The system performance is investigated in multipath fading channels. The theoretical analysis and simulation results show that the proposed CRBF channel equalizer structure which uses least mean square (LMS) algorithm to obtain the optimized equalizer weights offers both fast convergence and low value of the mean square error; the proposed CRBF-WPSS system has a superior SER performance to that of the conventional CRBF-OFDM-SS (spreading spectrum) system, and the proposed CRBF-WPSS system outperforms the WPSS system base on zero-forcing equalizers for multipath fading channels.

Keywords

Radial Basis Function Little Mean Square Wavelet Packet Radial Basis Function Network Symbol Error Rate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Lei Zhou
    • 1
  • Jian-Dong Li
    • 1
  • Peng He
    • 1
  1. 1.Broadband Wireless Communications Laboratory, Information Science Institute, State Key Laboratory of Integrated Service NetworksXidian UniversityXi’anChina

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