Wireless Personal Communications

, Volume 47, Issue 2, pp 219–233 | Cite as

Interference Suppression Consisting of Pre-distortion Filtering and Selective Transmit Diversity

  • Mário Marques da Silva
  • Américo M. C. Correia
  • Rui Dinis
Article

Abstract

In this paper we present and evaluate a pre-distortion (PD) scheme for the downlink of Wideband-code division multiple access (W-CDMA) systems considering a Rake in the receiver in order to exploit multipath diversity. Its performance is compared with schemes without the PD at the base station (BS), and combined with a transmit diversity (TD) scheme to improve the performance by exploiting spatial diversity. It is shown that the proposed PD scheme allows receivers (Mobile Stations) with very low complexity, contrarily to the case where a post-processing multi-user detector (MUD) approach is adopted to improve the performance. Therefore, the proposed PD scheme can be seen as an alternative to post-processing schemes.

Keywords

W-CDMA Pre-processing Selective transmit diversity Frequency-selective channels Downlink transmission 

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Copyright information

© Springer Science+Business Media, LLC. 2008

Authors and Affiliations

  • Mário Marques da Silva
    • 1
  • Américo M. C. Correia
    • 1
    • 2
  • Rui Dinis
    • 3
  1. 1.Instituto de Telecomunicações, ISTLisboaPortugal
  2. 2.ADETTI, ISTLisboaPortugal
  3. 3.Instituto de Sistemas e Robótica, ISTLisboaPortugal

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