Daniel de Souza Dias

Federal University of Rio de Janeiro | UFRJ

All means will be welcome to help data flow across smart cities. As a matter of fact, smart cities widely rely in sensing the environment, an action that is prone to generating huge amounts of data. A major challenge is how to collect such data in an efficient way without the need to deploy, whenever necessary, extra (costly) cellular infrastructur...

Passengers enjoy browsing the Internet and using social networking applications while commuting throughout the city. Nevertheless, it is not always possible to access the Internet at will. First, cellular coverage can be poor or nonexistent in some areas. Second, cellular communications may be expensive for a significant share of the population. Fi...

Data centers rely on virtualization to provide different services over a shared infrastructure. The placement of the different services and tasks in the physical machines is crucial for the performance of the whole system. A misplaced service can overload some network links, lead to congestion, or even connection disruptions. On the other hand, vir...