1. VS Telecom, São Paulo, Brazil
2. Laboratory Wireless and Optical Convergent Access (WOCA), National Telecommunications Institute (Inatel), Santa Rita do Sapucaí, Minas Gerais, Brazil
3. Institute of Systems Engineering and Information Technology, Federal University of Itajubá, Itajubá, Minas Gerais, Brazil
4. TMG, Vancouver, WA, USA
5. Brazilian Ministry of Communications, Brasília, Distrito Federal, Brazil
6. Radiocommunications Reference Center (CRR), National Telecommunications Institute (Inatel), Santa Rita do Sapucaí, Brazil
7. Department of Electrical and Computer Engineering, University of São Paulo (USP), EESC/USP, São Carlos, São Paulo, Brazil