Signal-to-interference ratio estimation in CDMA systems

Mohamed Abou-Khousa, Ali Ghrayeb, Mohamed El-Tarhuni

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

3 Citations (Scopus)

Abstract

This paper is focused on estimating the signal-to-interference ratio (SIR) per multipath component in CDMA systems operating over frequency selective Rayleigh fading channels. A per-path SIR estimator is proposed and its performance is compared to the Cramer-Rao bound (CRB) derived for this problem. To account for the hardware limitations of the portable mobile terminals, a low complexity version of the estimator is introduced and incorporated in the receiver structure. Based on the per-path SIR estimates, a new Finger Assignment Algorithm (FAA) is proposed and compared to the conventional energy-based FAA. We show that the proposed FAA exhibits an improved multipath detection capability. Hence, more sophisticated multipath acquisition circuits can be realized based on the per-path SIR estimates.

Original languageEnglish
Title of host publicationCanadian Conference on Electrical and Computer Engineering; Technology Driving Innovation, 2004
Pages1333-1337
Number of pages5
Volume3
DOIs
Publication statusPublished - 2004
Externally publishedYes
EventCanadian Conference on Electrical and Computer Engineering; Technology Driving Innovation, 2004 - Niagara Falls, Canada
Duration: 2 May 20045 May 2004

Other

OtherCanadian Conference on Electrical and Computer Engineering; Technology Driving Innovation, 2004
CountryCanada
CityNiagara Falls
Period2/5/045/5/04

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Keywords

  • CDMA
  • CRB bound
  • Finger assignment
  • RAKE receiver
  • SIR estimation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Hardware and Architecture

Cite this

Abou-Khousa, M., Ghrayeb, A., & El-Tarhuni, M. (2004). Signal-to-interference ratio estimation in CDMA systems. In Canadian Conference on Electrical and Computer Engineering; Technology Driving Innovation, 2004 (Vol. 3, pp. 1333-1337) https://doi.org/10.1109/CCECE.2004.1349645