… In this paper, we explored design aspects for adaptive OFDM modulation over time-varying
UWA channels. First, we investigated the possibility of predicting an UWA channel at least …

… In this article, we introduce IM-OFDM for UWA communications and propose a hybrid IM-…
introduce IM-OFDM to UWA communications as well as propose a hybrid IM-OFDM system with …

… of AMC to underwater acoustic communications has been limited … -rate modulation for
underwater communications based on … , “Adaptive OFDM modulation for underwater acoustic com…

… Chapter 16 presents two cooperative relay protocolsin OFDM modulated underwater
acoustic networks. Chapter 17 considersthe useof physical layer network coding. …

… multiplexing (OFDM) that is based on discrete Hartley transform (DHT) as a modulation
transform for underwater acoustic (UWA) communication instead of the conventional discrete …

… for MIMO underwater acoustic communications, including … form of orthogonal frequency-division
multiplexing (OFDM) [1], [2], [… multicarrier modulation algorithms for underwater acoustic …

… , the use of multicarrier modulation is introduced in the UWA communication, which puts
an end to the long-time delays in underwater acoustic channels. OFDM is a promising multi-…

… modulation and multicarrier modulation systems. In this paper, multicarrier modulation is
used in the form of orthogonal frequency division multiplexing (OFDM) and adaptive modulation …

… communication more challenging. In this research, real-time adaptive modulation for UA
OFDM communication … to implement an OFDM-based modem for UA communication. However, …

… to use a differential phaseshift keying (DPSK) modulation, where the data are carried out
on … symbols belonging to the successive OFDM symbols. With such a modulation, we do not …