Channel characterization for underwater broadband PLC sensor networks

For the tasks of navigation and obstacle detection, underwater and surface vehicles mostly rely on sonar, which uses a number of spatially distributed acoustic sensors. In this paper we explore the characteristics of linear bus structures, which is the natural choice for such an underwater sensor network, combining both power and data transmission capabilities, using only two wires. The measurement and modelling results of cables and a bus structure under changing pressure conditions are introduced. These results are essential for the development of a new broadband power line communication (PLC) system.