Anubis Graciela de Moraes Rossetto

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The infrastructure of mobile grid presents some challenges to allow the interaction between mobile devices and grid environments, such as (a) applications submission and monitoring facilities in an automated and coordinated manner, (b) disconnections during execution of applications, and (c) selection of suitable grid resources for their execution. This(More)
Opportunistic Networks are able to exploit social behavior to create connectivity opportunities. This paradigm uses pair-wise contacts for routing messages between nodes. In this context we investigated if the “six degrees of separation” conjecture of small-world networks can be used as a basis to route messages in Opportunistic Networks. We propose a(More)
The identification of users in pervasive and ubiquitous environments can be performed using various devices and techniques, among which the use of wireless sensor networks (WSN), radio frequency identifiers (RFID), Smartphones, Bluetooth, among others. However, it is necessary to implement management techniques and control privacy of these heterogeneous(More)
This work proposes a new and flexible unreliable failure detector whose output is related to the trust level of a set of processes. By expressing the relevance of each process of the set by an impact factor value, our approach allows the tuning of the detector output, making possible a softer or stricter monitoring. The idea behind our proposal is that,(More)
Cities are involving towards intelligent dynamic infrastructures that serve citizens with new services to improve their quality of life and to fulfill the criteria of energy efficiency and sustainability. In this context, an important question is how to instrument citizens and cities to promote the sensing of data about different aspects. In this work, we(More)
The interaction between mobile and grid environments in building a transparent infrastructure for mobile users, involves several factors from both wired and wireless networks. These include the following: coordinated application executions, the management of inherent characteristics of mobile devices (disconnections and the problem of a reduced battery(More)