Title :
Uplink call admission control with adaptive bit rate degradation for WCDMA
Author :
Rahman, Mahmud Syubli Abdul ; Ismail, Mohammad Faizal ; Dimyati, Kaharudin
Author_Institution :
Dept. of Electr. Eng., Univ. of Malaya, Kuala Lumpur, Malaysia
Abstract :
In this paper, we propose an uplink call admission control (CAC) scheme for WCDMA. The proposed scheme employs two-stage bit rate degradation strategies to reduce the total number of interference in order to increase the achievable SIR of the to-be-admit call especially in congested situation. The proposed scheme has shown improvement in the QoS performance by reducing the percentage of blocked calls and the percentage of dropped calls.
Keywords :
3G mobile communication; code division multiple access; interference suppression; quality of service; radiofrequency interference; telecommunication congestion control; QoS performance; UMTS; WCDMA; adaptive bit rate degradation; blocked calls; dropped calls; interference reduction; quality of service; to-be-admit call; uplink call admission control; wideband code division multiple access; Adaptive control; Base stations; Bit rate; Call admission control; Degradation; Delay effects; Interference; Multiaccess communication; Programmable control; Quality of service; CAC; UMTS; WCDMA;
Conference_Titel :
Communications (MICC), 2009 IEEE 9th Malaysia International Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4244-5531-7
DOI :
10.1109/MICC.2009.5431421
