Rausley Adriano Amaral de Souza was born in Brazil in 1972. He received the B.S.E.E. and the M.Sc. degrees from the the National Institute of Telecommunication, INATEL, in 1994 and 2002, respectively, and the Ph.D. degree from the School of Electrical and Computer Engineering of the State University of Campinas, UNICAMP, Brazil. From 1995 to 2001, he worked as a Purchase Manager at Leucotron Equipamentos Ltda. He joined the National Institute of Telecommunication, INATEL, in 2002, where he is presently a Associate Professor. His general research interests include wireless communications, fading channel modeling and simulation, diversity systems, and spectrum sensing in cognitive radio systems.