A Terminal Display System Of Maritime Communication Based On Ad Hoc Network

In recent years, the business of maritime communications has a rapid growth, the increase in the number of vessels add to the probability of distress at sea, so the perfor-mance of maritime communication system put forward higher requirements. To further enhance the functions of communications on maritime distress, expand the scope of tra-ditional VHF communication, "the mobile communication applications in basic research at sea based on Ad Hoc networks" in Ministry of Communications Science and Tech-nology Project, discussion group proposed the wireless mobile ad hoc network applica-tions to the existing communications equipment on the program. In order to understand the ship's around dynamic and Ad Hoc network communication situation more intuitive for ship's user, it is necessary to expand the system to the terminal display,In this paper, the knowlage of Ad Hoc Network is mastered and after "the maritime mobile communication system based on Ad Hoc Networks " is studied in a depth, using VC++language software development tools to design and develop a terminal display system ship's communication based on Ad Hoc Network. The system consists of ship dynamic information input subsystem, the routing calculation subsystem, routing analy-sis subsystem and the terminal display subsystems. The ship dynamic information input subsystem received dynamic ship's location information from the external hardware platform and communication system signaling of Ad Hoc Networks through RS-232 interface; the routing calculation subsystem calculate multi-hop communication route based on the ship's dynamic information and three routing protocols of AODV, DSR and DSDV; the routing analysis subsystem calculate and analyze comprehensive to give an optimal routing of communication; the terminal display subsystems use MFC module in Visual C++software to design a terminal display interface of maritime mobile com-munication and ultimately finished the study of the terminal display system of maritime communication based on Ad Hoc network.Simulation results show that: Based on receiving the signaling and ship location information, the terminal display system can calculate routings and can show the sea's charts, ships, multi-hop communication route and the best route. The interface is simple and the operation is very convenience.