Title :
QoS and load management via admission control in UMTS forward link
Author :
Rodrigues, Emanuel B. ; De Lima, Carlos H M ; De Sousa, Vicente A., Jr. ; Cavalcanti, Francisco R P ; Braga, Andre R. ; Maciel, Tarcisio E.
Author_Institution :
Fed. Univ. of Ceara, Fortaleza, Brazil
Abstract :
In downlink WCDMA systems, QoS and load management can be performed by a call admission control (CAC) algorithm. The objective of CAC is to guarantee high capacity and system stability, by accepting or denying an arriving bearer service access to the system, depending on the system load, the interference it adds to and receives from the existing connections, and the base station (BS) power limitation. Our contribution envisages the proposal of a flexible CAC framework regarding handover resource reservation, traffic activity monitoring and initial power allocation, in order to maximize the system capacity, while meeting quality of service (QoS) requirements throughout the dynamism of the connection duration.
Keywords :
3G mobile communication; code division multiple access; optimisation; quality of service; radiofrequency interference; resource allocation; stability; telecommunication congestion control; telecommunication network management; telecommunication traffic; CAC algorithm; QoS; RRM; UMTS forward link; admission control; base station power limitation; call admission control; capacity; downlink W-CDMA systems; downlink WCDMA systems; handover resource reservation; initial power allocation; interference; load management; quality of service; radio resource management; stability; system load; traffic activity monitoring; 3G mobile communication; Admission control; Base stations; Call admission control; Downlink; Interference; Load management; Multiaccess communication; Quality of service; Stability;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th
Print_ISBN :
0-7803-8255-2
DOI :
10.1109/VETECS.2004.1390711
