DPS: An architecture for VBR scheduling in IEEE 802.11e HCCA networks with multiple access points

Vergados, DJ; Vergados, DD; Douligeris, C

dc.contributor.author	Vergados, DJ	en
dc.contributor.author	Vergados, DD	en
dc.contributor.author	Douligeris, C	en
dc.date.accessioned	2014-03-01T01:30:14Z
dc.date.available	2014-03-01T01:30:14Z
dc.date.issued	2009	en
dc.identifier.issn	1383-469X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19507
dc.subject	802.11e	en
dc.subject	HCCA	en
dc.subject	Multi-AP coordination	en
dc.subject	Scheduling	en
dc.subject	SPC	en
dc.subject.classification	Computer Science, Hardware & Architecture	en
dc.subject.classification	Computer Science, Information Systems	en
dc.subject.classification	Telecommunications	en
dc.subject.other	802.11 e	en
dc.subject.other	Access points	en
dc.subject.other	Channel access	en
dc.subject.other	Coordination scheduling	en
dc.subject.other	Efficient scheduling	en
dc.subject.other	Guaranteed QOS	en
dc.subject.other	IEEE802.11E	en
dc.subject.other	In-network	en
dc.subject.other	Little research	en
dc.subject.other	Multiple access points	en
dc.subject.other	Performance evaluation	en
dc.subject.other	Scheduling mechanism	en
dc.subject.other	Spatial reuse	en
dc.subject.other	Variable bit rate traffics	en
dc.subject.other	Ad hoc networks	en
dc.subject.other	Bits	en
dc.subject.other	Dynamic positioning	en
dc.subject.other	Local area networks	en
dc.subject.other	Parallel algorithms	en
dc.subject.other	Quality of service	en
dc.subject.other	Standards	en
dc.subject.other	Traffic surveys	en
dc.subject.other	Wireless local area networks (WLAN)	en
dc.subject.other	Wireless telecommunication systems	en
dc.subject.other	Scheduling algorithms	en
dc.title	DPS: An architecture for VBR scheduling in IEEE 802.11e HCCA networks with multiple access points	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s11036-008-0126-5	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s11036-008-0126-5	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	Recent advances in 802.11 Wireless Local Area Networks (WLANs) have been focused on introducing Quality of Service (QoS) in their performance through the adoption of 802.11e. The Hybrid Controlled Channel Access (HCCA) has been proposed as the mechanism to provide the means for guaranteed QoS in networks controlled by a single Access Point (AP). Moreover, scheduling algorithms have been developed allowing efficient scheduling of Variable Bit Rate (VBR) traffic flows. However, little research may be found regarding the problem of applying HCCA on networks with multiple APs. In this paper, various VBR scheduling mechanisms and methods for multi-AP HCCA are presented and evaluated. In addition, this paper introduces the Dynamic Parallel Scheduler (DPS), a novel HCCA scheduling algorithm for VBR traffic among multiple APs that takes advantage of the rate variability and spatial reuse. DPS's performance evaluation shows that the proposed scheme achieves improved performance in terms of delay, throughput and packet loss. © 2008 Springer Science+Business Media, LLC.	en
heal.publisher	SPRINGER	en
heal.journalName	Mobile Networks and Applications	en
dc.identifier.doi	10.1007/s11036-008-0126-5	en
dc.identifier.isi	ISI:000271534500005	en
dc.identifier.volume	14	en
dc.identifier.issue	6	en
dc.identifier.spage	744	en
dc.identifier.epage	759	en