Call admission control techniques for UMTS

Author

Capone, Antonio ; Redana, Simone

Author_Institution

Dipt. di Elettronica e Inf., Politecnico di Milano, Italy

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

925

Abstract

The main advantage of UMTS radio interface is its flexibility in resource management allowed by the W-CDMA (wideband code division multiple access) technique. However, to exploit this flexibility it is necessary to design an efficient call admission control (CAC) scheme able to adapt the number of active calls in each cell according to interference levels and power availability. We compare the performance of two CAC styles for voice services, one based on the number of active calls and one on run-time measures of the power emitted by the base station or of the total received interference. For this last class of CAC algorithms we propose a simple scheme that allows one to perform measures when silence suppression is adopted

Keywords

broadband networks; cellular radio; code division multiple access; power control; radio networks; radiofrequency interference; telecommunication congestion control; telecommunication control; voice communication; CAC algorithms; UMTS radio interface; W-CDMA; active calls; base station power emission; call admission control; dropping probability; interference levels; power availability; power control model; resource management; run-time measures; second generation cellular systems; silence suppression; total received interference; voice services; wideband code division multiple access; 3G mobile communication; Availability; Base stations; Call admission control; Interference; Multiaccess communication; Power measurement; Resource management; Runtime; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th

Conference_Location

Atlantic City, NJ

ISSN

1090-3038

Print_ISBN

0-7803-7005-8

Type

conf

DOI

10.1109/VTC.2001.956908

Filename

956908