Title :
Call admission policies for UMTS
Author :
Dimitriou, N. ; Sfikas, G. ; Tafazolli, R.
Author_Institution :
Centre for Commun. Syst. Res., Surrey Univ., Guildford, UK
Abstract :
The article focuses on call admission control (CAC) techniques proposed for multimedia UMTS systems employing wideband CDMA. Multiple access control in CDMA is an interference management problem, involving physical layer as well as networking aspects. The effect of various system and user parameters on the provided quality of service is investigated. Two CAC schemes are presented (fixed-dynamic) and different criteria for resource allocation are proposed and evaluated. The aggregation of circuit/packet switched multimedia services (voice, video, WWW data) is studied through detailed traffic models and the performance results are obtained using simulation.
Keywords :
broadband networks; cellular radio; code division multiple access; multimedia communication; packet radio networks; quality of service; telecommunication congestion control; telecommunication traffic; CAC techniques; UMTS; W-CDMA; call admission control; circuit/packet switched multimedia services; interference management problem; multimedia systems; multiple access control; physical layer; quality of service; resource allocation; system parameters effect; traffic models; user parameters effect; wideband CDMA; 3G mobile communication; Access control; Call admission control; Interference; Multiaccess communication; Multimedia systems; Physical layer; Quality of service; Resource management; Wideband;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo, Japan
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851360
