Distributed simulation system and method supporting large-scale complicated delay tolerant network (DTN)

Abstract

The invention relates to a distributed simulation system and method supporting a large-scale complicated delay tolerant network (DTN). The conventional DTN simulation tool can only run on a single machine, is limited in operation capacity and low in simulation performance and can support a small scale of simulation nodes. The system comprises a main controller and a plurality of simulators which are positioned in the same local area network; the DTN is partitioned into grids, and an administration region is distributed to each simulator; and the main controller processes a simulation event by promoting a simulation clock and manages simulation of the simulators to be synchronous with the states. By the distributed simulation system and the distributed simulation method, a great number of calculation demands in simulation of the DTN are distributed to different simulators, so that the simulation speed is obviously increased; by adopting a basic network topological structure with one main controller and a plurality of simulators, the expandability is high; the requirement on a DTN network simulation scheme is low; distribution simulation can be realized by the system and the method only when the simulation scheme supports linear partitioning of a simulation network; and the generality is high.

Description

technical field [0001] The invention belongs to the technical field of computer network simulation, and in particular relates to a distributed simulation system and simulation method supporting a large-scale complex DTN network. Background technique [0002] DTN network, instant delay tolerant network (Delay Tolerant NetWorks). In some specific network environments (such as military Ad hoc networks, sensor networks), it often occurs that the network is disconnected due to the continuous movement of nodes, resulting in the inability to ensure the end-to-end path of the message during transmission. This type of network is called It is called a delay tolerant network. [0003] At present, simulation plays an important role in the design and analysis of routing protocols in DTN networks. In the verification process of DTN network routing protocols, due to cost considerations, it is impossible to build a set of DTN networks with a certain scale in the real world, so most of th...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a distributed simulation system and simulation method that can improve the simulation speed, scalability and versatility better support large-scale complex DTN network, in order to solve the simulation capability problem of the DTN network simulation system, especially It solves the performance problem of large-scale and complex DTN network simulation with large-scale simulation nodes and complex message distribution routing protocols

Images