Performance Analysis of Sea Unmanned Ship Routing Protocol Based on Ad Hoc Network

With the development of society, maritime communication system will affect the future military and civil needs directly. There are a lot of natural resources in the ocean, and some areas have important strategic value. The exploration and development of the ocean will be the focus of future research. The growing scale of research and the lack of offshore infrastructure also put forward severe requirements for future maritime communications. Based on the research of unmanned exploration vessels on the sea, this paper draws on the technical characteristics of wireless Ad Hoc networks to build a sea-based unmanned ship network system. Through simulation, we can see the advantages of ad hoc network in ship networking. In the absence of infrastructure, messages can be transmitted to each other to achieve interoperability.

I. Introduction

With the rapid development of the economy, the number of ships engaged in water transportation is increasing. The technology of ship is also developing in the direction of large-scale, intelligent and high-speed. The development of various water resources is inseparable from the intermediate role of ships. The increase in water transportation, environmental pollution and accidents have greatly hindered the use of water resources. Scholars have found that information interaction will be an important condition for the safe navigation and management of sea ships in the future^[1]–[2]. Currently, marine radar can provide collision avoidance, but the information provided is limited, and no more information can be obtained for management and coordination, which obviously cannot meet future marine applications. In addition, the currently widely used VHF communication mode relies too much on manual operations, which is inefficient and cannot communicate the information and operational intentions of both parties in time, and it is difficult to achieve the purpose of avoiding collision in advance. The ship automatic identification system AIS is applied to navigation. This system is based on the maritime wireless communication system of self-organizing time division multiple access technology. Although it can also be applied to wireless communication networks, its work requires a combination of some hardware and software systems. In some large-scale applications or local geographical scenarios, the system can effectively improve communication efficiency, avoid collisions, and rationally dispatch ships. However, the communication environment of marine vessels in the future will be complicated and harsh. In some areas, it is impossible to have infrastructure, and the various communication methods mentioned above cannot be fully adopted. Therefore, this paper draws on the working mode of Ad Hoc network for ship networks. The sea surface unmanned ship routing method is used to set up the network to achieve the purpose of network communication of marine vessels in a hostile environment.