Efficient Interference Management for 5G Mobile Networks

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Dr. Fazekas Péter
Department of Networked Systems and Services

Urban society is well known about being always on the move. So many various economical, cultural and services related functionalities concentrated in small area on a geological scale. Everybody is in connection with athors all the time, no matter what platform it is. A little part of us is living almost in a virtual reality, but still, our whole life can fit in our pocket. That brought us intense mobility. It feels absolutely natural to be able to connect to the web via broadband technologies almost everytime and every-where.

With the present resources and technologies it won’t be trivial to supply all the evergrowing traffic demands from one year to another. Especially with the mobile net-works were almost all the available frequency spectrum is used. However, present 4G systems can handle it with quite high efficiency, but we must be aware of their bounda-ries. Fifth generation networks will have to take new frequency ranges into account to fullfill the strict requirements against themselves and we need way more grandious con-cepts to reach growth in efficiency.

In my thesis I’m dealing with these kind of fifth generation-specific solutions. First, I’ll show the latest radio access technologies used in the mobile telecommunication industry. Then I’ll take a couple of notes about the heterogeneous multi-tier network architectures used in dense, quickly changing urban environments, with mentioning the caused inter-cell and intra-cell interference issues and the importance of resource mana-gement soultions. I’ll present how we can adapt these available technologies to such concepts as ultra-short wavelength Millimeter-Wave trnsmission on 28 and 38 GHz frequencies or the 5G-specific expansion of the modern multi-antenna arrays. I’ll do researches about how the new radio propagation conditions are affecting the network performances. I’ll propose a centralized scheduler algorithm combined with a dynamic power control which provides fair and efficient resource allocation for users in dense, urban scenarios.


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