A SPATIAL VARIABLE MODEL FOR ROUTING OCEAN OPTICAL CABLES

摘要

1 Introduction How to select the optimal route for burying ocean optical cable is a very important work in design and implementation of complex ocean optical communication system[1,2,3]. A poor route selection results usually in the very poor performance of the related ocean optical communication system and huge maintenance expense for normal operation of such system. One of effective methods for solving the problem is to look into a new theory and related method for designing the optimal routes for burying ocean optical cables under complex ocean geographic environment. However,traditional methods for the route selection of ocean optical cable are experiencebased numeric analysis and lack precision mathematical model to support the optimal route analysis,so that the final route selection quality is not usually satisfactory. In fact,the major reason to arrive at the situation is that the route selection is really a spatial variable analysis problem and the numeric variable-based tradition method for the route selection is not suitable to this spatial variable analysis requirement. Thus,most of current users of the traditional method face usually many other difficulties that include large computation cost and abstract numeric output. Otherwise,the objective for selecting the optimal route for ocean optical cable is different obviously from the optimal route selection in some land-based telecommunication networks. To increase the reliability of ocean optical cable communication system and to decrease the maintenance cost of the system are two very important objectives in optimal route selection of the system. In this paper,we discuss a new spatial variable model for solving the above problem and providing more satisfactory service for the route selection of ocean optical cables. The model makes use of spatial variable but numeric one describe and solve the problem how to select the optimal route for burying ocean optical cables,which provide more direct graphical information relevant to the route selection and simpler method for solving the problem,so that the work to select the optimal route under complex ocean environment and optical cable requirement becomes more convenient and easier.