High‐data transmission rate and reliable communication in underwater acoustic channel is
challenging because of limited bandwidth, multipath propagation, and Doppler shift, which …

In this thesis we designed and implemented an underwater acoustic (UWA) communication
system employing multicarrier modulation in the form of orthogonal frequency division …

Underwater communication is one of the most important and difficult challenges facing
researchers due to the high attenuation of the signal, communication with the surface …

Due to very low propagation speed of acoustic waves, underwater communication via
acoustic waves observe a significant Doppler scaling in the received signal. In addition, due …

The paper focuses on Orthogonal Frequency Division Multiplexing (OFDM) based
modulation schemeto improve underwater wireless communication system. The scheme …

Research developments and applications in the underwater acoustic communication fields
have been a challenge for researchers. In this paper we present a study about image …

Underwater acoustic (UWA) communication is an ongoing challenge because of the heavy
time spread by multipath and Doppler spreads. In this paper, we propose a UWA …

It is prominent that underwater acoustic channel has inherently dispersive characteristics for
the communication due to multipath, relative mobility of hydrophones, small-large scale …

This paper compares the effectiveness of different spread OFDM techniques with transmit
diversity used for underwater acoustic communications. Spreading by Walsh-Hadamard …

The Doppler effects is an important reason of the signal distortion generated in the mobile
communication. Especially in the underwater acoustic channel, for the propagation velocity …