Electromagnetic communication solution for scuba-diving

Summary form only given. Data exchange in many underwater applications such as oceanographic data collection, scientific ocean sampling, pollution and environmental monitoring, disaster prevention, underwater system maintenance, recreational scuba diving, is an exciting task. Due to the reduced visibility (for optical) or high attenuations (for radio) link, in most of the cases the communication between different locations cannot take place. When possible, this limitations are alleviated employing data transmission via cables, a solution that can be employed for both dynamic (e.g. on the scuba divers) or static (e.g. sensor nodes) systems. However, its use assumes that the movement among the different communicating objects is clearly strongly limited. On the other hand, the total lack of the possible communication among the divers substantially reduces the possibility of preventing dangers, avoiding the considered activity to be conducted in safe way.