1. Department of Communications, School of Electrical and Computer Engineering, State University of Campinas, Campinas, São Paulo, Brazil
2. Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
3. Department of Physics, Shiv Nadar University, Kalavakkam, Tamil Nadu, India
4. Department of Hardware Design, Instituto de Pesquisa Eldorado, Campinas, São Paulo, Brazil