[Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering] Information and Communication Technology for Development for Africa Volume 244 (First International Conference, ICT4DA 2017, Bahir Dar, Ethiopia, September 25–27, 2017, Proceedings) || Comparative Study of the Performances of Peak-to-Average Power Ratio (PAPR) Reduction Techniques for Orthogonal Frequency Division Multiplexing (OFDM) Signals