Soft handover overhead reduction by RAKE reception with finger replacement

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

3 Scopus citations

Abstract

We propose and analyze a new finger replacement technique that is applicable for RAKE receivers when they operate in the soft handover (SHO) region. In the SHO region, the receiver uses by default the strongest paths from the serving base station (BS) and only when the combined signal-to-noise ratio falls below a certain pre-determined threshold, the receiver uses more resolvable paths from the target BS to improve the performance. Instead of changing the configuration for all Angers, the receiver just compares the sum of the weakest paths from the serving BS with that of other paths from the target BS and select the better group. Applying some recent results on order statistics, we attack the statistics of two partial sums of order statistics and provide an analytical framework for the performance evaluation of the proposed scheme. By investigating the tradeoff between the error performance and the SHO overhead, we show through numerical examples that the new scheme can save some SHO overhead load.

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

Publication series

Name2006 IEEE Singapore International Conference on Communication Systems, ICCS 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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