In this paper, we analyzed the main characteristics of the underwater acoustic channel to
design a high-performance underwater acoustic modem. We utilized modulation …

Establishing an underwater wireless acoustic communication link for practical applications is
still a difficult task because of the severe channel conditions. Doppler and range spread are …

Recently, underwater acoustic communication system has been received a great interest
due to its wide application areas. Since acoustic modem is one of the core technologies for …

In this workshop, we would like to demonstrate a stand-alone OFDM modem prototype that
has been developed at the UWSN lab at the University of Connecticut. The modem …

Increasing interests have been arising in developing communication network systems which
are compatible for underwater scenarios. Among all carriers, acoustic signal is preferred for …

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

OFDM has several distinct challenges in the underwater channel environment. The
underwater channel is known to be highly frequency selective with large delay and Doppler …

Due to multipath propagation and frequency selective fading, there are many obstacles for
reliable and high data rate underwater acoustic (UWA) communication. OFDM is an …

Multicarrier modulation in the form of OFDM has been actively pursued for underwater
acoustic communication recently. In this paper, we present a desirable property of OFDM …

Acoustic communication is a promising technique for underwater communication. However,
most of the existing acoustic communication technologies usually require custom acoustic …