DocumentCode :
1833919
Title :
Call Admission Control based on adaptive bandwidth allocation for multi-class services in wireless networks
Author :
Chowdhury, Mostafa Zaman ; Jang, Yeong Min ; Haas, Zygmunt J.
Author_Institution :
Dept. of Electron. Eng., Kookmin Univ., Seoul, South Korea
fYear :
2010
fDate :
17-19 Nov. 2010
Firstpage :
358
Lastpage :
361
Abstract :
Due to the fact that Quality of Service (QoS) requirements are not as stringent for non-real-time traffic types, as opposed to real-time traffic, more calls can be accommodated by releasing some bandwidth from the existing non-real-time traffic calls. If the released bandwidth to accept a handover call is larger than to accept a new call, then the probability of dropping a call is smaller than the probability of blocking a call. In this paper we propose an efficient Call Admission Control (CAC) that relies on adaptive multi-level bandwidth-allocation scheme for non-real-time calls. The features of the scheme allow reduction of the call dropping probability along with the increase of the bandwidth utilization. The numerical results show that the proposed scheme is able to attain negligible handover call dropping probability without sacrificing bandwidth utilization.
Keywords :
bandwidth allocation; quality of service; queueing theory; telecommunication congestion control; adaptive bandwidth allocation; bandwidth utilization; call admission control; call dropping probability; multi-class services; quality of service; wireless networks; Adaptive systems; Bandwidth; Channel allocation; Quality of service; Real time systems; Wireless networks; Adaptive bandwidth allocation; CAC; Quality of Service; handover call dropping probability; non-real-time traffic; wireless networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information and Communication Technology Convergence (ICTC), 2010 International Conference on
Conference_Location :
Jeju
Print_ISBN :
978-1-4244-9806-2
Type :
conf
DOI :
10.1109/ICTC.2010.5674699
Filename :
5674699
Link To Document :
بازگشت