DocumentCode :
1884599
Title :
Admission control for mixed services in downlink WCDMA in different propagation environments
Author :
Missiroli, Maria ; Patelli, Riccardo ; Vignali, Luca
Author_Institution :
Fondazione Ugo Bordoni, Italy
Volume :
2
fYear :
2001
fDate :
Sep/Oct 2001
Abstract :
An admission control algorithm for downlink WCDMA systems is proposed and analysed, through dynamic simulations, considering a detailed propagation model. The evaluated admission control algorithm allows access to radio resources based on a filtered version of transmitted power at a base station. It takes advantage of the suggested prediction mechanism of the future transmitted power and is capable of handling access requests of different service classes. Comparisons with both a reference scenario and basic admission control are included as well. Results indicate that the proposed algorithm can exploit the resource allocation flexibility of power limited systems especially well where propagation conditions introduce heavy spatial non-uniformity. In fact in the simulated urban scenario, the capacity gain, introduced by the proposed algorithm, is shown to be more than doubled compared to the uniform environment case. In addition, it is shown that the algorithm, working with different kinds of services, can maintain almost the same traffic mix, regardless of the absolute system load
Keywords :
broadband networks; cellular radio; code division multiple access; packet radio networks; radio links; radiowave propagation; telecommunication congestion control; 3rd generation mobile communication systems; WCDMA systems; access requests; admission control algorithm; capacity gain; downlink; dynamic simulations; mixed services; propagation model; resource allocation flexibility; service classes; simulated urban scenario; transmitted power; Admission control; Algorithm design and analysis; Analytical models; Base stations; Downlink; Electronic mail; Multiaccess communication; Quality of service; Resource management; Traffic control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2001 12th IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7244-1
Type :
conf
DOI :
10.1109/PIMRC.2001.965258
Filename :
965258
Link To Document :
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