Next Generation Reliable Transport Networks

Publication: ResearchPh.D. thesis – Annual report year: 2011

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This thesis focuses the efforts on ensuring the reliability of transport networks and takes advantages and experiences from the transport networks into the networks for particular purposes. Firstly, the challenges of providing reliable multicast services on Multipath Label Switching-Transport Profile (MPLS-TP) ring networks are addressed. Through the proposed protection structure and protection switching schemes, the recovery mechanism is enhanced in terms of recovery label consumption, operation simplicity and fine traffic engineering granularity. Furthermore, the extensions for existing and proposed protection schemes on the interconnected-ring structure are presented, which not only fulfill the requirements suggested by ITU and IETF organizations, but also increase the scalability and applicability of the transport ring networks. Secondly, avionic transport networks are investigated, aiming at enabling the full exploitation of key optical networking technologies in future aircrafts. A three-layered optical transport networks over a ring topology is suggested, as it can provide full reconfiguration flexibility and support a wide range of avionic applications. According to different levels of criticality and security, there are certain physical or logical segregation requirements between the avionic systems. Such segregations can be implemented on the proposed avionic networks with different hierarchies. In order to fulfill the segregation requirements, a tailored heuristic approach for solving the wavelength and fiber assignment problem is proposed and implemented for avionic optical transport networks. Simulation results give out resource consumptions and prove the efficiency of the proposed mechanisms. Finally, a Home Environment Service Knowledge Management system is proposed. Through ontology technologies, a knowledge base is constructed to represent the whole information of a home environment. By applying the reasoner tool, the proposed system manages to keep the consistency in a home environment and helps all software configure and update procedures across multiple vendors.
Original languageEnglish
Publication dateNov 2011
Place of publicationKgs. Lyngby, Denmark
PublisherTechnical University of Denmark (DTU)
StatePublished
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