TanhR nonlinear companding scheme for UWA systems

作     者：Abd El-galil, Menna S. Soliman, Naglaa F. Abdalla, M.I. Elaskily, Mohamed A. Abd El-Samie, Fathi E. 

作者机构：Department of Electronics and Communications Faculty of Engineering Zagazig University 44519 Zagazig Egypt Department of Information Technology College of Computer and Information SciencesPrincess Nourah bint Abdulrahman University Riyadh 84428 Saudi Arabia Electronic Research Institute Cairo Egypt Department of Electronics and Electrical Communications Engineering Faculty of Electronic Engineering Menoufia University Menouf 32952 Egypt 

出 版 物：《International Journal of Electronics Letters》 (International J. Electronics Letters)

年 卷 期：2021年第9卷第4期

页      面：517-523页

基　　金：Deanship of Scientific Research at Princess Nourah bint Abdulrahman University 

主　　题：equalisation OFDM PAPR Underwater acoustic communication (UWA) 

摘      要：The basic idea of this letter is concerned with the large Peak-to-Average Power Ratio (PAPR) problem in multi-carrier Under-Water Acoustic (UWA) communication systems that implement Orthogonal Frequency Division Multiplexing (OFDM). A Tangent Rooting (TanhR) companding technique is presented in this paper to reduce the PAPR in UWA communication systems. This technique achieves a noticeable reduction of the PAPR in UWA systems, while maintaining a good Bit Error Rate (BER) performance. Channel equalisation with Linear Minimum Mean Square Error (LMMSE) and Zero-Forcing (ZF) equalisers is considered in this paper. Simulation results ensure superiority of the proposed technique compared to the Selected Mapping (SLM) and the Partial Transmit Sequence (PTS) techniques from both the PAPR and BER perspectives. © 2020 Informa UK Limited, trading as Taylor & Francis Group.