A MAC protocol for efficient multiplexing QoS-sensitive and best-effort traffic in dynamically configurable WDM rings

Leligou, H-C; Angelopoulos, JD; Linardakis, C; Stavdas, A

dc.contributor.author	Leligou, H-C	en
dc.contributor.author	Angelopoulos, JD	en
dc.contributor.author	Linardakis, C	en
dc.contributor.author	Stavdas, A	en
dc.date.accessioned	2014-03-01T01:19:45Z
dc.date.available	2014-03-01T01:19:45Z
dc.date.issued	2004	en
dc.identifier.issn	1389-1286	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15698
dc.subject	Access arbitration	en
dc.subject	Access priorities	en
dc.subject	MAC protocol	en
dc.subject	Metropolitan rings	en
dc.subject	QoS	en
dc.subject	WDM	en
dc.subject.classification	Computer Science, Hardware & Architecture	en
dc.subject.classification	Computer Science, Information Systems	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Telecommunications	en
dc.subject.other	Bandwidth	en
dc.subject.other	Closed loop control systems	en
dc.subject.other	Computer simulation	en
dc.subject.other	Interfaces (computer)	en
dc.subject.other	Network protocols	en
dc.subject.other	Quality of service	en
dc.subject.other	Telecommunication traffic	en
dc.subject.other	Wavelength division multiplexing	en
dc.subject.other	Wide area networks	en
dc.subject.other	Access arbitration	en
dc.subject.other	Metropolitan rings	en
dc.subject.other	Metropolitan area networks	en
dc.title	A MAC protocol for efficient multiplexing QoS-sensitive and best-effort traffic in dynamically configurable WDM rings	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.comnet.2003.09.005	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.comnet.2003.09.005	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	Slotted dynamically re-configurable Metropolitan rings are viewed as a viable alternative to WDM channel over-provisioning since they allow statistical sharing between the channels. A challenge these networks are facing is to simultaneously transport both delay sensitive and best-effort traffic. In this work, a strategy for mixing up different QoS classes efficiently in a dynamically re-configurable ring is proposed. The scheme is based on explicit class reservations for the delay-sensitive first priority traffic, which are allowed to fluctuate in accordance with demand. In contrast, best effort traffic is using only any bandwidth left over by the high QoS traffic, thus exploiting the elastic behaviour of best-effort traffic and its closed loop control. The performance of the proposed mechanism is evaluated via simulations demonstrating access delay below the round trip time for high priority traffic and good overall system efficiency by filling any spare capacity with best-effort traffic, which was buffered during busy periods. (C) 2003 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Computer Networks	en
dc.identifier.doi	10.1016/j.comnet.2003.09.005	en
dc.identifier.isi	ISI:000188292900003	en
dc.identifier.volume	44	en
dc.identifier.issue	3	en
dc.identifier.spage	305	en
dc.identifier.epage	317	en