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A slotted access control protocol for metropolitan WDM ring networks

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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


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