Comparison of capacity in downlink WCDMA systems using soft handover techniques with SIR-based power control and site selection diversity transmission

Author

Reig, Juan ; Rubio, Lorenzo ; Cardona, Narcis

Author_Institution

Departamento de Comunicaciones, Univ. Politecnica de Valencia, Spain

Volume

4

fYear

2004

fDate

17-19 May 2004

Firstpage

1999

Abstract

In this paper, downlink performance of WCDMA system with site selection diversity transmission power control (SSDT) during soft handover mode is analysed. Signal to interference ratio (SIR) power control techniques are modelled and used in simulations. The study is focused on finding the optimum soft handover margin in terms of maximum system capacity under E_b/N₀ quality requirements. The capacity and resources allocated (number of codes required) using SSDT is compared to usual soft handover technique.

Keywords

bandwidth allocation; broadband networks; channel allocation; code division multiple access; diversity reception; fading channels; interference (signal); multipath channels; power control; telecommunication control; SIR-based power control; SSDT; allocated resources; downlink WCDMA systems; downlink performance; handover techniques; maximum system capacity; multipath fading; optimum soft handover margin; signal to interference ratio power control techniques; simulations; site selection diversity transmission; soft handover mode; system capacity; system quality requirements; Base stations; Downlink; Fading; Interference; Multiaccess communication; Performance analysis; Power control; Power system modeling; Probability; Shadow mapping;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th

ISSN

1550-2252

Print_ISBN

0-7803-8255-2

Type

conf

DOI

10.1109/VETECS.2004.1390624

Filename

1390624