Sinem Kafiloğlu Defended Her Doctoral Thesis


The surging multimedia content demand has put wireless network systems under heavy energy consumption burden in an unprecedented manner. Besides, wireless networks are urged to the limits of service capacity due to the adopted enriched multimedia services. According to these facts, in this thesis we analyze content-centric wireless networks from trade-off natured energy and service capacity perspectives and specifically elaborate on the spectrum sharing heterogeneous networking paradigm. First, we provide a compound spectrum sharing heterogeneous network model enriched with satellite networking, cognitive radio and device-to-device paradigms and investigate this model rigorously in all aspects. Owing to the fact that multimedia content is the building block of our research, we propose a new content model. We propose caching methods based on our new content model due to the fact that in-network caching is an instrumental method to improve the performance of content transmissions in terms of both system capacity and energy consumption. We enhance our caching evaluation in two direction i) cooperation, ii)optimization. We profoundly analyze all caching verticals with respect to different system dynamics and compare our proposals to alternative techniques.

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