Colour-aware rate/coverage-controlled DS/CDMA downlink transmission for DiffServ

Author

Iwamura, M. ; Friderikos, V. ; Wang, L. ; Aghvami, A.H.

Author_Institution

Centre for Telecommun. Res., King´´s Coll. London, UK

Volume

152

Issue

2

fYear

2005

fDate

4/8/2005 12:00:00 AM

Firstpage

191

Lastpage

196

Abstract

To improve the quality-of-service (QoS) support over cellular DS/CDMA systems with IP transport, rate/coverage-controlled downlink transmission schemes that utilise the QoS information from the IP layer of the differentiated services (DiffServ) architecture are proposed. The rate/coverage is controlled depending on the packet-drop precedence (packet colour) of the assured forwarding class in DiffServ and the traffic load at the base station. The out-of-profile packets are given less priority in the physical rate allocation or provided with less coverage compared with the in-profile packets. Simulations verify the advantages of the DiffServ-aware schemes and show that the coverage control scheme outperforms the rate control scheme.

Keywords

DiffServ networks; IP networks; cellular radio; code division multiple access; packet radio networks; quality of service; radio links; spread spectrum communication; telecommunication control; telecommunication traffic; DiffServ; IP layer; IP transport; QoS; cellular DS-CDMA system; colour-aware rate control scheme; coverage control scheme; differentiated services; direct sequence code division multiple access; downlink transmission scheme; packet-drop precedence; physical rate allocation; quality-of-service;

fLanguage

English

Journal_Title

Communications, IEE Proceedings-

Publisher

iet

ISSN

1350-2425

Type

jour

DOI

10.1049/ip-com:20041242

Filename

1430593