Joel J. P. C. Rodrigues

Learn More
The fast-paced development of power systems necessitates smart grids to facilitate real-time control and monitoring with bidirectional communication and electricity flows. Future smart grids are expected to have reliable, efficient, secured, and cost-effective power management with the implementation of distributed architecture. To focus on these(More)
Owing to the ubiquitous nature, ease of deployment, and wide range of potential applications, wireless sensor networks (WSNs) have received a lot of attention recently. WSNs can be deployed in unattended environments; however, they have many challenges. It should be guaranteed that not only illegitimate users cannot login and access data in the network but(More)
Traditionally, environmental monitoring is achieved by a small number of expensive and high precision sensing unities. Collected data are retrieved directly from the equipment at the end of the experiment and after the unit is recovered. The implementation of a wireless sensor network provides an alternative solution by deploying a larger number of(More)
Ever since wireless sensor networks (WSNs) have emerged, different optimizations have been proposed to overcome their constraints. Furthermore, the proposal of new applications forWSNs have also created new challenges to be addressed. Cross-layer approaches have proven to be themost efficient optimization techniques for these problems, since they are able(More)
Vehicular Delay-Tolerant Networks (VDTNs) are an application of the Delay-Tolerant Network (DTN) concept, where the movement of vehicles and their message relaying service is used to enable network connectivity under unreliable conditions. To address the problem of intermittent connectivity, long-term message storage is combined with routing schemes that(More)
Compared to the research in energy-aware wireless and Ethernet networks, less attention has been given to energy-aware optical counterparts. In this paper, we consider energy-aware traffic grooming problems in optical networks for both static and dynamic cases. Rather than simply considering a logical architecture of an optical node, we specifically look(More)
The objective of this work was the proposal, design, construction and validation of a mobile health system for dietetic monitoring and assessment, called SapoFit. This application may be personalized to keep a daily personal health record of an individual's food intake and daily exercise and to share this with a social network. The initiative is a(More)