With a growing number of modulation and equalization schemes proposed for underwater
acoustic communications, the need exists for methods to evaluate the performance of the …

Advances in underwater acoustic communications technology are being enabled by more
access to in-water data and an infusion of new techniques, researchers, and students. In …

Abstract Development of communication channels for underwater sensor networks holds
many unique challenges. Communication near the bottom of the ocean is no exception as …

Underwater acoustic (UWA) communication is getting increased attention in a wide range of
applications, such as coastal surveillance systems, environmental research and …

In recent years the scientific community has devoted considerable resources to the research
of wireless underwater communications, with a particular emphasis on acoustic …

Acoustic propagation is characterized by three major factors: attenuation that increases with
signal frequency, time-varying multipath propagation, and low speed of sound (1500 m/s) …

Underwater acoustic communications are significantly affected by time-varying multipath.
Time-delays induced by multiple reactors on boundaries can be compensated for through …

This thesis is about design, simulation and testing of an underwater acoustic modem using
OFDM. The thesis work combines a theoretical part, whose objective is to understand the …

Kongsberg Maritime wanted a channel emulator for testing their hydroacoustic equipment
before deploying it at sea. The benefits of such a system are that it detects problems in an …