A comparative study of power control strategies for soft handover in UTRA FDD WCDMA system

Author

Akhtar, Saleem ; Malik, Shahzad Ali ; Zeghlache, Djamal

Author_Institution

Telecommun. Networks & Services Dept., Inst. Nat. des Telecommun., Evry, France

Volume

4

fYear

2001

fDate

2001

Firstpage

2680

Abstract

This paper analyzes the potential benefits of using different schemes to control base station power during soft handover for UTRA WCDMA downlink. Balanced downlink power control, used to limit control power drifting, and the site selection diversity technique (SSDT) power control are compared with hybrid power control. A hybrid scheme switches dynamically from balanced power control to site selection diversity power control to decrease the base station power during congestion. The objective is to find out whether there is any additional improvement in cellular coverage and performance using these schemes. Total base station transmission power, individual traffic channel power for each mobile station and outage time are used for comparison

Keywords

broadband networks; code division multiple access; diversity reception; microcellular radio; multiuser channels; power control; radio links; telecommunication control; UTRA FDD WCDMA system; UTRA WCDMA downlink; balanced downlink power control; base station power control; base station transmission power; cellular coverage; hybrid power control; macrocellular environment; microcellular environment; mobile station; outage time; power control; site selection diversity; soft handover; traffic channel power; Base stations; Control systems; Downlink; Frequency; Intelligent networks; Interference; Mobile communication; Multiaccess communication; Power control; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd

Conference_Location

Rhodes

ISSN

1090-3038

Print_ISBN

0-7803-6728-6

Type

conf

DOI

10.1109/VETECS.2001.944087

Filename

944087