This letter addresses the limitations of the stochastic channel simulation approach employed in wireless channels when directly applied to underwater channels. First it is shown analytically why the simulation method fails when the correlated taps each have a different Doppler spectrum. Then, based on the idea of local scattering functions, we propose a simple solution to the problem of simulat...

Despite being a fundamental networking primitive, data broadcasting has so far received little attention in the context of underwater networks. This paper proposes an adaptive push system for data broadcasting in underwater acoustic wireless networks with locality of client demands. The proposed system exploits the characteristic relationship between the bandwidth of an underwater acoustic link...

Three benchmark cases are proposed to study tsunamis generated by underwater landslides. Two distinct numerical models are applied to each benchmark case. Each model involves distinct center of mass motions and rates of landslide deformation. Computed tsunami amplitudes agree reasonably well for both models, although there are differences that remain to be explained. One of the benchmark cases ...

Sinusoidal Transform based Orthogonal Frequency Division Multiplexing (OFDM) is proposed for Underwater Acoustic Communications. Underwater acoustic channels are large delay spread channels. The sinusoidal transforms can be used as an alternative to the discrete Fourier transform (DFT) for OFDM wireless transmission with the added advantages of reduced implementation area, increased computation...

The worldwide decline of coral reefs is attributed to the increase in atmospheric CO2 and water temperature. We use simulations to show that it is possible to classify coral reef pigments from underwater images captured by consumer RGB cameras. These simulations will help us design experiments in a controlled laboratory environment and to quantify the effect that water temperature has on the sp...

With recent developments in terrestrial wireless networks and advances in acoustic communications, multichannel technologies have been proposed to be used in underwater networks to increase data transmission rate over bandwidth-limited underwater channels. Due to high bit error rates in underwater networks, an efficient error control technique is critical in the logical link control (LLC) subla...