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Mobile cloud computing is a promising approach to overcome limitations of mobile devices in terms of battery consumption and capability to execute computation-intensive applications. It consists in outsourcing some parts of computation-intensive applications to cloud servers, so that the overall energy consumption and execution time of application's running are optimized. In addition to classical...
Cloud Radio Access Network (C-RAN) is a novel mobile network architecture that brings baseband processing units (BBUs) of a set of base stations into a central server keeping only remote radio heads (RRHs) at the cell sites. Because of their limited resources, running sophisticated applications on mobile handsets could result in poor performances and shortened battery lifetime. One promising solution...
We consider the decision engine of mobile cloud offloading systems, which decides whether to offload a given method to the cloud servers. We design, implement, and evaluate a context-aware decision algorithm, called CADA, to optimize the performance of the mobile devices with various optimization criteria, including short response time and low energy consumption. The CADA algorithm can work with various...
The energy consumption in mobile devices had gained more attention from infra-structure carriers and mobile manufacturers with the growth and expansion of third generation networks. The air interface resource allocation is the main factor of the energy consumption increase when the mobile is transmitting in background at anytime. When the air interface timeouts are reduced, there is a reduction in...
Mobile devices that are permanently connected to IP networks are prone to have higher energy consumptions because unsolicited packets also force the device to move to a state where the consumption is higher. We consider a simplified model for the energy consumption based on the average consumptions in the different states and the time the device stays in each state. We perform discrete event simulations...
Since Wireless and mobile networks have become increasingly heterogeneous and particularly dynamic, multiple security requirements must be addressed in a flexible and dynamic manner to cope with runtime changing context. Therefore, a generic security adaptation reference monitor must be developed to deal with extremely dynamic security conditions and also performances. In this paper, we present our...
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