A slotted access control protocol for metropolitan WDM ring networks

Baziana, PA; Pountourakis, IE

dc.contributor.author	Baziana, PA	en
dc.contributor.author	Pountourakis, IE	en
dc.date.accessioned	2014-03-01T01:29:40Z
dc.date.available	2014-03-01T01:29:40Z
dc.date.issued	2009	en
dc.identifier.issn	1068-5200	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19334
dc.subject	Channels collisions avoidance	en
dc.subject	Metropolitan Area Network (MAN)	en
dc.subject	Receiver collisions avoidance	en
dc.subject	Tunable transceivers	en
dc.subject	Wavelength Division Multiplexing (WDM)	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Optics	en
dc.subject.classification	Telecommunications	en
dc.subject.other	Access control	en
dc.subject.other	Discrete event simulation	en
dc.subject.other	Fiber optic networks	en
dc.subject.other	Information dissemination	en
dc.subject.other	Multiplexing	en
dc.subject.other	Multiplexing equipment	en
dc.subject.other	Optical communication	en
dc.subject.other	Scalability	en
dc.subject.other	Stripping (dyes)	en
dc.subject.other	Telecommunication networks	en
dc.subject.other	Transceivers	en
dc.subject.other	Wavelength	en
dc.subject.other	Wavelength division multiplexing	en
dc.subject.other	Channels collisions avoidance	en
dc.subject.other	Metropolitan Area Network (MAN)	en
dc.subject.other	Receiver collisions avoidance	en
dc.subject.other	Tunable transceivers	en
dc.subject.other	Wavelength Division Multiplexing (WDM)	en
dc.subject.other	Metropolitan area networks	en
dc.title	A slotted access control protocol for metropolitan WDM ring networks	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.yofte.2008.06.006	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.yofte.2008.06.006	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	In this study we focus on the serious scalability problems that many access protocols for WDM ring networks introduce due to the use of a dedicated wavelength per access node for either transmission or reception. We propose an efficient slotted MAC protocol suitable for WDM ring metropolitan area networks. The proposed network architecture employs a separate wavelength for control information exchange prior to the data packet transmission. Each access node is equipped with a pair of tunable transceivers for data communication and a pair of fixed tuned transceivers for control information exchange. Also, each access node includes a set of fixed delay lines for synchronization reasons; to keep the data packets, while the control information is processed. An efficient access algorithm is applied to avoid both the data wavelengths and the receiver collisions. In our protocol, each access node is capable of transmitting and receiving over any of the data wavelengths, facing the scalability issues. Two different slot reuse schemes are assumed: the source and the destination stripping schemes. For both schemes, performance measures evaluation is provided via an analytic model. The analytical results are validated by a discrete event simulation model that uses Poisson traffic sources. Simulation results show that the proposed protocol manages efficient bandwidth utilization, especially under high load. Also, comparative simulation results prove that our protocol achieves significant performance improvement as compared with other WDMA protocols which restrict transmission over a dedicated data wavelength. Finally, performance measures evaluation is explored for diverse numbers of buffer size, access nodes and data wavelengths. (C) 2008 Elsevier Inc. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE INC	en
heal.journalName	Optical Fiber Technology	en
dc.identifier.doi	10.1016/j.yofte.2008.06.006	en
dc.identifier.isi	ISI:000264938700002	en
dc.identifier.volume	15	en
dc.identifier.issue	2	en
dc.identifier.spage	100	en
dc.identifier.epage	118	en