1. Group of Computer Networks, Software Engineering and Systems (GREat), Federal University of Ceará, Pici Campus, Avenida Mister Hull, s/n, Bloco 942-A, 60.455-760 Fortaleza, CE, Brazil
2. Telematics Department, Federal Institute of Ceará, Fortaleza Campus, Avenida Treze de Maio, 2081 Benfica, 60.040-531 Fortaleza, CE, Brazil
3. CCMN, Federal University of Rio de Janeiro, Avenida Athos da Silveira Ramos, Cidade Universitária, 21.941-590 Ilha do Fundão, RJ, Brazil
4. Informatics and Applied Mathematics Department, Federal University of Rio Grande do Norte, Lagoa Nova Campus, 59.078-970 Natal, RN, Brazil