Title :
A priority-oriented call admission control paradigm with QoS renegotiation for multimedia services in UMTS
Author :
Li, Frank Yong ; Stol, Norvald
Author_Institution :
Dept. of Telematics, Norwegian Univ. of Sci. & Technol., Trondheim, Norway
Abstract :
A novel priority-oriented CAC strategy has been proposed in this paper, based on 3GPP defined QoS classes for multimedia traffic in UMTS. The basic idea of our scheme is to let the higher priority class(es) have precedence over the lower priority class(es) at call admission, i.e. the more ´important´ calls have more opportunities to be accepted. For delay tolerable classes of traffic, we introduce a QoS renegotiation procedure, resulting in a lower blocking probability for overall traffic. Simulation results under various traffic loads are also presented
Keywords :
cellular radio; code division multiple access; multimedia communication; probability; quality of service; telecommunication congestion control; telecommunication traffic; 3GPP; CDMA; QoS renegotiation; UMTS; blocking probability; call admission control; multimedia services; priority-oriented strategy; traffic loads; 3G mobile communication; Bit error rate; Call admission control; Delay; Interference; Multiaccess communication; Multimedia systems; Radio network; Telecommunication traffic; Traffic control;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.945051
