NDLI: Adaptive Priority Sliding Admission Control and Scheduling Scheme for DCF and EDCA WLANs

Content Provider	Springer Nature Link
Author	Pang, Wai Leong Chieng, David Ahmad, Nurul Nadia
Copyright Year	2012
Abstract	In this paper an Adaptive Priority Sliding Admission Control and Scheduling (APSAS) scheme is proposed to provide QoS over the existing IEEE802.11 WLANs which operate on Distributed Coordination Function (DCF) and Enhanced Distributed Channel Access (EDCA) mechanisms. The roles of this scheme are generally two folds: (1) To control the number of delay-sensitive real time flows that can be admitted into the WLAN Basic Service Set network and (2) To adjust the priority of selected real time flows in order to accommodate more real time flows without violating the QoS requirement. Extensive simulation studies show that APSAS improves the total throughput, flow throughput ratio, packets end-to-end delay, and jitter of the real time applications when compared with conventional best effort and scheduling-enhanced DCF/EDCA. APSAS also offers near to unity average throughput ratio, lower mean VoIP end-to-end packet delay (<130 ms) and lower mean video packet jitter (<130 ms) over DCF and EDCA.
Starting Page	295
Ending Page	321
Page Count	27
File Format	PDF
ISSN	09296212
Journal	Wireless Personal Communications
Volume Number	70
Issue Number	1
e-ISSN	1572834X
Language	English
Publisher	Springer US
Publisher Date	2012-06-08
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	WLAN Admission control scheduling QoS architecture DCF EDCA Communications Engineering, Networks Signal, Image and Speech Processing Computer Communication Networks
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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