Iterative weighted interference cancellation for CDMA systems with RAKE reception

Rajiv Nambiar, Andrea Goldsmith

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

2 Scopus citations

Abstract

The performance of CDMA systems can be severely degraded by interference, including both intersymbol interference (ISI) and the interference between users (co-channel interference) due to the non-orthogonality of the PN codes. We consider a system that uses a RAKE receiver along with a weighted iterative Interference Cancellation (IC) scheme to combat both ISI and co-channel interference. The resultant decoding scheme offers significant performance improvement over a conventional RAKE receiver with a complexity much less than that of Maximum-Likelihood decoding. We discuss the features and advantages of our proposed scheme and also provide simulation results for its BER performance for different numbers of users and weighting factors.

Original languageEnglish (US)
Title of host publicationIEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall
Pages1232-1236
Number of pages5
StatePublished - 1999
Externally publishedYes
EventIEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall - Houston, TX, USA
Duration: Sep 19 1999Sep 22 1999

Publication series

NameIEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall
Volume2
ISSN (Print)0740-0551

Conference

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

All Science Journal Classification (ASJC) codes

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

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