Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles Article Faculty Publications -Articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource A Novel Dynamic Physical Layer Impairment-Aware Routing and Wavelength Assignment (PLI-RWA) Algorithm for Mixed Line Rate (MLR) Wavelength Division Multiplexed (WDM) Optical Networks Subject The topic of the resource mixed-line-rate optical networks; physical layer impairment-aware routing and wavelength assignment; physical layer impairments; XPM Description An account of the resource The ever-increasing global Internet traffic will inevitably lead to a serious upgrade of the current optical networks' capacity. The legacy infrastructure can be enhanced not only by increasing the capacity but also by adopting advance modulation formats, having increased spectral efficiency at higher data rate. In a transparent mixed-line-rate (MLR) optical network, different line rates, on different wavelengths, can coexist on the same fiber. Migration to data rates higher than 10 Gbps requires the implementation of phase modulation schemes. However, the co-existing on-off keying (OOK) channels cause critical physical layer impairments (PLIs) to the phase modulated channels, mainly due to cross-phase modulation (XPM), which in turn limits the network's performance. In order to mitigate this effect, a more sophisticated PLI-Routing and Wavelength Assignment (PLI-RWA) scheme needs to be adopted. In this paper, we investigate the critical impairment for each data rate and the way it affects the quality of transmission (QoT). In view of the aforementioned, we present a novel dynamic PLI-RWA algorithm for MLR optical networks. The proposed algorithm is compared through simulations with the shortest path and minimum hop routing schemes. The simulation results show that performance of the proposed algorithm is better than the existing schemes. 2016 by De Gruyter. Creator An entity primarily responsible for making the resource Iyer S. Source A related resource from which the described resource is derived Journal of Optical Communications, Vol-37, No. 4, pp. 349-356. Publisher An entity responsible for making the resource available Walter de Gruyter GmbH Date A point or period of time associated with an event in the lifecycle of the resource 2016-01-01 Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1515/joc-2015-0018" target="_blank" rel="noreferrer noopener">https://doi.org/10.1515/joc-2015-0018</a> <br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-84999040321&amp;doi=10.1515%2Fjoc-2015-0018&amp;partnerID=40&amp;md5=b080aa924c104a78a6086387523aafbe" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-84999040321&amp;doi=10.1515%2fjoc-2015-0018&amp;partnerID=40&amp;md5=b080aa924c104a78a6086387523aafbe</a> Rights Information about rights held in and over the resource Restricted Access Relation A related resource ISSN: 1734911; CODEN: JOCOD Format The file format, physical medium, or dimensions of the resource Online Language A language of the resource English Type The nature or genre of the resource Article Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Iyer S., Department of Electronics and Communication Engineering, Faculty of Engineering, Christ University, Mysore Road, Bangalore, India