Optimization techniques for planning New Generation Access (NGA) network topologies

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Supervisor:
Dr. Mitcsenkov Attila Demeter
Department of Telecommunications and Media Informatics

Nowadays bandwidth demands are growing rapidly in the world, due to the significant penetration of Triple-Play architecture (video, voice and data transmission, e.g. television, telephone, and high-speed internet access). Therefore telecommunications providers have to improve the existing infrastructural background, including access network (located between service provider and subscribers). Primarily it means the replacement of the copper cables with optical fibers in this area, where several architectural and technological options are available for service providers. The market share of these standardized technologies is expected to significantly grow in the near future. Therefore providers need to develop various technology-specific topology design algorithms, to reduce the design time and ease the selection of optimal technology.

First I became acquainted with next generation access network architectures, including passive optical networks. After that, I worked and analyzed several well-known optimization procedures, and metaheuristics, which can be used in topology design. Based on the results of the analysis, I developed an optimization method for topological design of passive optical networks, but it can be applied for other next generation access technologies, as well. Finally, I implemented the algorithm to an existing network designer framework, and tested with real geographic and subscriber data.

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