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The quality of service of a mobile application is critical to ensure user satisfaction. Techniques have been proposed to accomplish adaptation of quality of service dynamically. However, there is still a limited understanding about how to provide a utility model for code execution. One key challenge is modeling the level of quality in the code execution that can be provisioned by the cloud. Since...
Data consumption is increasing rapidly in mobile networks. The cost of the network infrastructure is increasing, which leads to an "end of profit" within next few years. Thus, mobile operators require a new technology that allows increasing the network capacity within low network costs. Therefore, using caching is the most evident solution to be used in their backhaul networks. However,...
In this paper, we quantify reordering and connection interruption while downloading data to mobile phones in modern HSPA/HSPA+ mobile networks based on end-to-end measurements conducted in commercial operator networks. We show how these events are affected by phone model, operator, time of the day, user movement and signal strength. We find that phone model, time of day and user movement affect the...
This paper provides an overview of the current LTE architecture and the proposed solutions to integrate Software Defined Network (SDN) technology. The integration of SDN into mobile networks become Software Defined Mobile Network (SDMN), which provides new benefits such as dynamic and efficient caching. Firstly, the paper proposes the integration of SDN in LTE networks on disruptive approach that...
Platforms for measuring cellular networks from mobile phones are very popular. Unfortunately, they all suffer from a simplistic approach and measurement errors, and questions how to interpret these measurements. One such error source is that it is easy to measure the signal strength but hard to draw exact conclusions from it. Our work focuses on understanding the measured signal strength and analyzing...
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