A hybrid serial-parallel interference cancellation scheme for WCDMA systems

Pooyan Haghighat, Ali Ghrayeb

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

3 Citations (Scopus)

Abstract

This paper proposes a hybrid interference cancellation scheme for wideband code division multiple access (WCDMA) uplink transmission. Principles of serial (SIC) and parallel (PIC) interference cancellation are combined with a novel user configuration algorithm (termed "trickle") in order to provide improved bit-error-rate (BER) performance while maintaining overall processing delay as compared to previous hybrid schemes. The proposed scheme utilizes an adaptive matrix to compute the required number of interference cancellation iterations for each user prior to the detection process. The total number of iterations is determined based on the number of users and is set to match that of previously designed interference cancellation models. Bit-streaming, pipelined multiuser detection is employed and channel estimates are obtained using sample pilot data known at the receiver. The trickle algorithm is applied to conventional SIC as well as previous hybrid models. Results show an improvement of 1 dB over group-wise SIC and similar performance to hybrid IC with reduced processing delay at the cost of complexity.

Original languageEnglish
Title of host publication2007 Canadian Conference on Electrical and Computer Engineering, CCECD
Pages621-624
Number of pages4
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event2007 Canadian Conference on Electrical and Computer Engineering, CCECD - Vancouver, BC, Canada
Duration: 22 Apr 200726 Apr 2007

Other

Other2007 Canadian Conference on Electrical and Computer Engineering, CCECD
CountryCanada
CityVancouver, BC
Period22/4/0726/4/07

Fingerprint

Code division multiple access
Multiuser detection
Processing
Bit error rate

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Hardware and Architecture

Cite this

Haghighat, P., & Ghrayeb, A. (2007). A hybrid serial-parallel interference cancellation scheme for WCDMA systems. In 2007 Canadian Conference on Electrical and Computer Engineering, CCECD (pp. 621-624). [4232819] https://doi.org/10.1109/CCECE.2007.160

A hybrid serial-parallel interference cancellation scheme for WCDMA systems. / Haghighat, Pooyan; Ghrayeb, Ali.

2007 Canadian Conference on Electrical and Computer Engineering, CCECD. 2007. p. 621-624 4232819.

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

Haghighat, P & Ghrayeb, A 2007, A hybrid serial-parallel interference cancellation scheme for WCDMA systems. in 2007 Canadian Conference on Electrical and Computer Engineering, CCECD., 4232819, pp. 621-624, 2007 Canadian Conference on Electrical and Computer Engineering, CCECD, Vancouver, BC, Canada, 22/4/07. https://doi.org/10.1109/CCECE.2007.160
Haghighat P, Ghrayeb A. A hybrid serial-parallel interference cancellation scheme for WCDMA systems. In 2007 Canadian Conference on Electrical and Computer Engineering, CCECD. 2007. p. 621-624. 4232819 https://doi.org/10.1109/CCECE.2007.160
Haghighat, Pooyan ; Ghrayeb, Ali. / A hybrid serial-parallel interference cancellation scheme for WCDMA systems. 2007 Canadian Conference on Electrical and Computer Engineering, CCECD. 2007. pp. 621-624
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