To improve the channel efficiency, a bidirectional TDMA protocol is proposed for UWASNs in
the paper. In proposed protocol, each time slot is divided into two parts, the DATA …

In JAMSTEC, the acoustic communication is investigated, especially in deep water
environment. Then, short-range (up to 500 m) high speed (around 64 kbps) acoustic …

The Softwater Modem is a software modem for underwater acoustic communication that
enables users to run applications on the familiar sockets interface without any additional …

With development of ocean exploitation, maritime rights protection, and other fields of
marine information acquiring and processing, integrated underwater acoustic …

Underwater acoustic experiments were conducted in the Trondheim fjord between fixed
transmitters and receivers separated by 2.3 km, 4.3 km and 8.0 km. Direct-sequence spread …

Multipath propagation, frequency selective fading, low-propagation velocity, and narrow
bandwidth are all characteristics of underwater acoustic channels. Doppler shifts and …

Underwater Acoustic Sensor Networks (UW-ASNs) is of growing research interest. This
paper gives description on underwater channel model. It overviews transmission schemes in …

The potential of exploiting large propagation delays in underwater acoustic (UWA) networks
to maximize the network throughput is established in the recent past. Transmission …

Underwater acoustic (UWA) communication has been the topic of many recent research
publications. Because of small ratio of the carrier frequency over the signal band-width …

Underwater communication has become a crucial data transmission technology for
commercial and military marine applications in the last few decades. However, most …