MMSE space-domain interference suppression for multi-rate DS-CDMA

Wayne G. Phoel*, Michael L Honig

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We consider space-domain interference suppression for reverse-link IS-95 and Wideband DS-CDMA (W-CDMA) based on the Minimum Mean Square Error (MMSE) cost criterion. An adaptive algorithm for estimating the MMSE combining coefficients for each path is presented which is compatible with IS-95 orthogonal modulation and long spreading codes. The relative performance of non-coherent, maximal ratio (max-ratio), and MMSE combining are compared with mixed (high and low) data rates, where received power is proportional to data rate. Our results show that MMSE combining can offer a significant increase in capacity relative to max-ratio combining. Analytical performance results for W-CDMA based on a large system limit are also presented, and are shown to be accurate even with relatively few combining coefficients.

Original languageEnglish (US)
Title of host publicationIEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall
Pages826-830
Number of pages5
Volume1
StatePublished - Jan 1 1999
EventIEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall - Houston, TX, USA
Duration: Sep 19 1999Sep 22 1999

Other

OtherIEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall
CityHouston, TX, USA
Period9/19/999/22/99

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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