On optimal power distribution for successive interference cancellation (SIC) for wideband CDMA

Yu Nan Lin, David W. Lin

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

2 Scopus citations

Abstract

Successive interference cancellation (SIC) is an effective technique to reduce multiple access interference and thereby increase capacity. While a conventional receiver attains best performance under equal received power for all users, a SIC-based receiver favors unequal powers. We consider ways to assign powers to the received user signals for the benefit of SIC-based multiuser detection. Two power assignment methods, both allocating user signal powers according to their sequence of detection in SIC, are investigated. Through numerical simulation, the methods are shown to greatly improve the bit error rate (BER) performance compared to equal-power assignment. The simulation results also show that, under these methods of power assignment, SIC yields superior performance to parallel interference cancellation (PIC) in high-data-rate transmission.

Original languageEnglish
Title of host publication2001 IEEE 3rd Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2001
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages38-41
Number of pages4
ISBN (Electronic)0780367200
DOIs
StatePublished - 1 Jan 2001
Event3rd IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2001 - Taoyuan, Taiwan
Duration: 20 Mar 200123 Mar 2001

Publication series

NameIEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC
Volume2001-January

Conference

Conference3rd IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2001
CountryTaiwan
CityTaoyuan
Period20/03/0123/03/01

Keywords

  • Bit error rate
  • Detectors
  • Interference cancellation
  • Multiaccess communication
  • Multiple access interference
  • Multiuser detection
  • Power distribution
  • Power engineering and energy
  • Silicon carbide
  • Wideband

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  • Cite this

    Lin, Y. N., & Lin, D. W. (2001). On optimal power distribution for successive interference cancellation (SIC) for wideband CDMA. In 2001 IEEE 3rd Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2001 (pp. 38-41). [923836] (IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC; Vol. 2001-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SPAWC.2001.923836