Mobility models for cellular mobile networks in urban environment

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Dr. Szabó Sándor
Department of Networked Systems and Services

Worldwide, including Hungary, people use electronic devices that connect to mobile networks more and more. This increasing trend will hardly change when more and more devices with internet or 3G/4G connectivity appear( mobile phones, mobile internet, PDA, tablets, kindle e-book, iPad basically every mobile device follows this trend).

These devices will of course increase network traffic in the future. Serving the users appropriately is a challenge. Network operators must keep up with the growing demands. A user today, in any part of the country expects to be able to check his or her e-mail, social sites or the weather and the news.

My thesis deals with the assistance of optimization of network load in urban areas keeping the quality of service in vizier. When optimizing load simulating mobility is indispensable. During my previous Project Laboratory I learnt about different mobility models, but it was always a question how they can be used in real life. I found it interesting that none of the literature used real network data/traces as reference for their models.

I give an overview about different mobility models then test them in OMNeT++. I give a short overview of the OMNeT++ IDE. Finally I evaluate and compare the results of the simulation with the reference.


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