I am a PhD Student and Research Assistant at STEAMER Team, Grenoble Informatics Laboratory (LIG), Joseph Fourier University - University of Grenoble. I received my M.Sc. degree in Electrical Engineering from the Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil, in 2008 and B.Sc degree in Teleinformatics from the Federal Center of Technological Education (CEFET-CE), Fortaleza, Brazil in 2005. My main research interests are in mobile computing, Geographic Information System (GIS), wireless networks and security.