Performance analysis of RAKE receivers with finger reassignment

Seyeong Choi*, Mohamed Slim Alouini, Khalid A. Qaraqe, Hong Chuan Yang

*Corresponding author for this work

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

2 Scopus citations

Abstract

We propose and analyze in this paper a new finger assignment technique that is applicable for RAKE receivers when they operate in the soft handover (SHO) region. This scheme employs a new version of generalized selection combining (GSC). More specifically, in the SHO region, the receiver uses by default only the strongest paths from the serving base station (BS) and only when the combined signal-to-noise ratio (SNR) falls below a certain pre-determined threshold, the receiver uses more resolvable paths from the target BS to improve the performance. Hence, relying on some recent results on order statistics we attack the statistics of two correlated GSC stages and provide the closed-form expressions for the statistics of the output SNR. By investigating the tradeoff among the error performance, the path estimation load, and the SHO overhead, we show through numerical examples that the new scheme offers commensurate performance in comparison with more complicated GSC-based diversity systems while requiring a smaller estimation load and SHO overhead.

Original languageEnglish (US)
Title of host publication2006 IEEE Singapore International Conference on Communication Systems, ICCS 2006
DOIs
StatePublished - 2006
Externally publishedYes
Event10th IEEE Singapore International Conference on Communications Systems, ICCS 2006 - Singapore, Singapore
Duration: Oct 30 2006Nov 1 2006

Conference

Conference10th IEEE Singapore International Conference on Communications Systems, ICCS 2006
CountrySingapore
CitySingapore
Period10/30/0611/1/06

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Communication
  • Electrical and Electronic Engineering

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