A joint power and rate assignment algorithm for multirate soft handoffs in mixed-size WCDMA cellular systems

Ching Yu Liao*, Chung Ju Chang, Li-Chun Wang, Yih Shen Chen

*Corresponding author for this work

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

This paper proposes a joint power and rate assignment (JPRA) algorithm to deal with multirate soft handoffs (SHOs) in mixed-size wideband code division multiple access cellular systems. This JPRA algorithm contains a link proportional power allocation scheme and an evolutionary computing rate assignment method to determine an appropriate allocation of transmission power and service rate for multirate SHOs. It can achieve power balancing among cells better than the conventional site-selection diversity transmission scheme with best effort rate allocation. Simulation results show that the JPRA algorithm can achieve better cell's service coverage and higher system capacity with and without the measurement errors during the active set selection.

Original languageEnglish
Pages (from-to)1388-1398
Number of pages11
JournalIEEE Transactions on Vehicular Technology
Volume56
Issue number3
DOIs
StatePublished - 1 May 2007

Keywords

  • CDMA
  • Optimization methods
  • Resource management
  • Soft handoff

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