Nowadays, the so-called smartphones and tablets are being more and more popular, and by their huge amount, they are responsible for a significant portion of the whole Internet traffic. It is particularly the case of mobile network providers, who are selling more smartphones every day. By the spreading of home Wi-Fi networks, a lot of residential internet connections are being used by these smartphone users. Because of the large number of users and the limited amount of network resources it is more and more important to discover how the users use their devices and how the devices act at this time. Our networks can be utilized optimally only if we know our users' needs and habits.
The goal of this thesis is to describe a measurement environment developed for devices running Android operating system which can later provide useful information for researchers working on network development and Quality of Experience (QoE). The system is able to capture the device's network traffic and to log and store some information on the device's state and the user's behavior.
Mostly I did my work at Ericsson Hungary's Traffic Lab and the starting position was an application which we got from the Department of Telecommunications and Media Informatics of Budapest University of Technology and Economics. I have modified this application's code and updated with new features to fulfill the requirements. Besides this, a completely new application has been developed during my work.