Physical layer impairment aware wavelength routing algorithms based on analytically calculated constraints

Anagnostopoulos, V; Politi, C(T); Matrakidis, C; Stavdas, A

dc.contributor.author	Anagnostopoulos, V	en
dc.contributor.author	Politi, C(T)	en
dc.contributor.author	Matrakidis, C	en
dc.contributor.author	Stavdas, A	en
dc.date.accessioned	2014-03-01T01:26:54Z
dc.date.available	2014-03-01T01:26:54Z
dc.date.issued	2007	en
dc.identifier.issn	0030-4018	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18277
dc.subject.classification	Optics	en
dc.subject.other	Algorithms	en
dc.subject.other	Constraint theory	en
dc.subject.other	Optimization	en
dc.subject.other	Quality of service	en
dc.subject.other	Blocking probability	en
dc.subject.other	Optical networks	en
dc.subject.other	Physical layer impairments (PLI)	en
dc.subject.other	Routing engine	en
dc.subject.other	Optical communication	en
dc.title	Physical layer impairment aware wavelength routing algorithms based on analytically calculated constraints	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.optcom.2006.09.063	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.optcom.2006.09.063	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	A quality-of-service (QoS)-aware routing engine for a transparent optical network that accounts for physical layer impairments (PLI) is presented. PLI are studied collectively by means of Q-factor. The latter is calculated by analytical methods that speed up the calculation and allow application in a dynamic network. Two path establishment algorithms are deployed: the shortest-path and the shortest widest path. The impact of PLI awareness on the QoS is measured in terms of blocking probability and load balance. Any of the physical parameters can be used as an optimization variable in order to assess their effect on performance degradation at system and network level. The impact of the path establishment algorithm on the optimization parameter is analysed. (c) 2006 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Optics Communications	en
dc.identifier.doi	10.1016/j.optcom.2006.09.063	en
dc.identifier.isi	ISI:000244157700023	en
dc.identifier.volume	270	en
dc.identifier.issue	2	en
dc.identifier.spage	247	en
dc.identifier.epage	254	en