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A hybrid nonlinear distortion compensator for multicode DS/CDMA systems

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A multicode DS/CDMA is considered to be a promising technique for high rate data transmission, but it causes nonlinear distortion due to the multilevel amplitude characteristics after linear combining and nonlinear amplification at the mobile station (MS). This paper proposes a hybrid nonlinear distortion compensator that combines a predistorter at the MS and a maximum-likelihood (ML) detector at the base station, especially for the reverse link. The hybrid scheme can effectively compensate for the performance degradation due to nonlinear distortion by compromising the drawbacks incurred when either predistorter or ML detector is used separately. Simulation results show that the use of the hybrid scheme results in significant improvement compared to either one, and there exists trade-off between the two techniques in view of the back-off.

Original languageEnglish
Title of host publicationICUPC 1998 - IEEE 1998 International Conference on Universal Personal Communications, Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1087-1091
Number of pages5
ISBN (Electronic)0780351061, 9780780351066
DOIs
StatePublished - 1998
Externally publishedYes
EventIEEE International Conference on Universal Personal Communications, ICUPC 1998 - Florence, Italy
Duration: 5 Oct 19989 Oct 1998

Publication series

NameICUPC 1998 - IEEE 1998 International Conference on Universal Personal Communications, Conference Proceedings
Volume2

Conference

ConferenceIEEE International Conference on Universal Personal Communications, ICUPC 1998
Country/TerritoryItaly
CityFlorence
Period5/10/989/10/98

Keywords

  • Base stations
  • Bit error rate
  • Data communication
  • Degradation
  • Detectors
  • Ear
  • Land mobile radio
  • Multiaccess communication
  • Nonlinear distortion
  • Performance gain

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