Communication Systems

Marcelo Sampaio de Alencar received his Master Degree in Electrical Engineering, from Universidade Federal da Paraiba (UFPB), Brazil, 1988 and his Ph.D. from the University of Waterloo, Department of Electrical and Computer Engineering, Canada, 1993. For 18 years he worked for the Department of Electrical Engineering, Federal University of Paraiba, where he was Full Professor. From 2003 to 2017, he was Chair Professor at the Department of Electrical Engineering, Federal University of Campina Grande, Brazil. Between 1982 and 1984, he worked for the State University of Santa Catarina (UDESC). Since 2017 he is with the Federal University of Bahia. He spent some time working for MCI-Embratel and the University of Toronto, as Visiting Professor. He is founder and President of the Institute for Advanced Studies in Communications (Iecom), founder and Vice-president of the Academy of Sciences of Paraiba (ACParaiba). He has been awarded several scholarships and grants, from the Brazilian National Council for Scientific and Technological Research (CNPq), two grants from the IEEE Foundation, scholarships from the University of Waterloo and from the Federal University of Paraiba, an achievement award for contributions to the Brazilian Telecommunications Society (SBrT), an award from the Medicine College of the Federal University of Campina Grande (UFCG), and an achievement award from the College of Engineering of the Federal University of Pernambuco, during its 110th year celebration. He published over 450 engineering and scientific papers and 23 books. He also wrote chapters for 11 books. Marcelo S. Alencar has contributed in different capacities to the following scientific journals: Editor of the Journal of the Brazilian Telecommunication Society; Member of the International Editorial Board of the Journal of Communications Software and Systems (JCOMSS), published by the Croatian Communication and Information Society (CCIS); Member of the Editorial Board of the Journal of Networks (JNW), published by Academy Publisher; creator and Editor-in-Chief of the Journal of Communication and Information Systems (JCIS), a joint edition of the IEEE Communications Society (ComSoc) and SBrT. He also served on the Board of Directors of SBrT and on the SBMO Council. He is a Registered Professional Engineer, a columnist for the traditional Brazilian newspaper Jornal do Commercio, since April, 2000, and was Vice-President External Relations of SBrT.

Signal Analysis.- Probability Theory and Random Processes.- Speech Coding.- Amplitude Modulation.- Quadrature Amplitude Modulation.- Angle Modulation.- Propagation Channels. Carrier Transmision.- Mobile Cellular Telephony.- Appendix A: Fourier Series and Fourier Transform.- Appendix B: Formulas and Important Inequalities.- Appendix C: Use of the Radiofrequency Spectrum.- Appendix D: The CDMA Standard.- Appendix E: The GSM Standard.