Christina Tanya Politi

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This paper presents a hybrid optical/electrical switch for high-capacity future network development. A switch architecture to provide packet switching by solving contention in wavelength and time domains is considered relying on available optical and electrical technology. Physical and logical aspects regarding switch feasibility and management, in relation(More)
The emerging popularity of bandwidth-starving applications (such as internet video, cloud storage etc) has lead to an exponential growth of the amount of data to be transmitted over long distances using optical fibre. Fibre transmission impairments, like chromatic dispersion (CD) remain a limiting factor on optical transmission and hence their compensation(More)
In Wavelength Switched Optical Networks (WSONs) with dynamic path establishment and wavelength assignment, connection requests between a source and a destination node are negotiated at lightpath connection set up, where a specific wavelength is assigned for data transportation among the two nodes that may span multiple links. In order to guarantee QoS in(More)
In this work, two bufferless high capacity broadcast-and-select optical switching node architectures are presented and their performance is evaluated. The architectures are modular permitting the expansion from basic to complex structures by adding new blocks/components in a gradual way, enhancing at the same time the corresponding network functionality.(More)
— Clustering of nodes in optical networks has been proven an efficient way to serve end to end connectivity. However, clustering requires specific topological characteristics, or alternatively the introduction of significant alterations of an existing topology in order to achieve the expected performance improvements. The comparison of future dynamic(More)
Statistical multiplexing at the optical layer has been considered a critical requirement in order to build the next generation of ultra-high capacity optical transport networks in a cost-efficient manner. However, even today, the state of the art of commercially available optical core networks is based on mature wavelength switching and routing(More)