An optical network architecture with distributed switching inside node clusters features improved loss, efficiency, and cost

Angelopoulos, JD; Kanonakis, K; Koukouvakis, G; Leligou, HC; Matrakidis, C; Orphanoudakis, TG; Stavdas, A

dc.contributor.author	Angelopoulos, JD	en
dc.contributor.author	Kanonakis, K	en
dc.contributor.author	Koukouvakis, G	en
dc.contributor.author	Leligou, HC	en
dc.contributor.author	Matrakidis, C	en
dc.contributor.author	Orphanoudakis, TG	en
dc.contributor.author	Stavdas, A	en
dc.date.accessioned	2014-03-01T01:25:54Z
dc.date.available	2014-03-01T01:25:54Z
dc.date.issued	2007	en
dc.identifier.issn	0733-8724	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17806
dc.subject	All-optical networks	en
dc.subject	Core networks	en
dc.subject	Optical burst switching (OBS)	en
dc.subject	Statistical multiplexing	en
dc.subject	Wavelength-division-multiplexing (WDM) networking	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Optics	en
dc.subject.other	Cluster analysis	en
dc.subject.other	Fiber optic networks	en
dc.subject.other	Multiplexing	en
dc.subject.other	Optical communication	en
dc.subject.other	Optical switches	en
dc.subject.other	Probability	en
dc.subject.other	Switching theory	en
dc.subject.other	All-optical networks	en
dc.subject.other	Core networks	en
dc.subject.other	Optical burst switching (OBS)	en
dc.subject.other	Optical network architecture	en
dc.subject.other	Wavelength division multiplexing	en
dc.title	An optical network architecture with distributed switching inside node clusters features improved loss, efficiency, and cost	en
heal.type	journalArticle	en
heal.identifier.primary	10.1109/JLT.2007.893034	en
heal.identifier.secondary	http://dx.doi.org/10.1109/JLT.2007.893034	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	The novel core network architecture presented in this paper realizes distributed all-optical switching of payload by partitioning the network into a number of geographically limited domains, where two-way reservations are effective. Thus, inside each domain, loss is eliminated, while traffic from many nodes can be aggregated into single bursts, improving efficiency. Clustered nodes contribute contiguous optical slots, which are marshaled into composite optical frames destined for other clusters, under the guidance of a reservation-based control protocol. The lossless aggregation of traffic from several core nodes allows the use of cost-effective bufferless all-optical transport among the domains with electrical buffers employed at the periphery of the system. The end result is a triple improvement in loss probabilities, efficiency, and cost. This is achieved by exploiting three features of the architecture: the distributed switching functionality (as in early LANs when centralized switching was expensive), localized reservations (avoiding the intolerable delays of end-to-end reservations), and a reduced number of source-destination pairs (by means of node clustering into reservation domains). © 2007 IEEE.	en
heal.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC	en
heal.journalName	Journal of Lightwave Technology	en
dc.identifier.doi	10.1109/JLT.2007.893034	en
dc.identifier.isi	ISI:000246411600004	en
dc.identifier.volume	25	en
dc.identifier.issue	5	en
dc.identifier.spage	1138	en
dc.identifier.epage	1146	en