Construction method of dynamic mesh of vehicle-mounted ad hoc network

Abstract

The invention provides a construction method of a dynamic mesh of a vehicle-mounted ad hoc network. The construction method of the dynamic mesh of the vehicle-mounted ad hoc network comprises a selection method of a leading node of the dynamic mesh, a fusion method of the dynamic mesh, a separation method of the dynamic mesh and a replacement method of the leading node. The selection method of the leading node of the dynamic mesh comprises selecting a vehicle node with a largest evaluation function value as the leading node among vehicle nodes according to a respective evaluation function value within a mutual communication range; the fusion method of the dynamic mesh comprises enabling the dynamic mesh with less GM (GM) to be a merging party and to be added into an incorporated party with more GM of the dynamic mesh; the separation method of the dynamic mesh comprises sending a separation request to a leading node GL when a or a plurality of vehicle nodes are far away from a communication range of the leading node GL and forming into a novel mesh by the vehicle nodes which are willing to join into the novel mesh after separation; the replacement method of the leading node comprises selecting a candidate leading node and handing over the leadership when the leading node is prepared to give up the leadership. The construction method of the dynamic mesh of the vehicle-mounted ad hoc network is used for constructing the dynamic mesh of the vehicle-mounted ad hoc network.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method for constructing a dynamic grid of a vehicle ad hoc network. Background technique [0002] VANET (Vehicle Ad-Hoc Network) is a newly developed research field in recent years. It refers to organizing mobile vehicles as nodes or routers into a mobile and autonomous wireless network form. In such a network form, moving vehicles exchange information with each other, and store, calculate and forward traffic flow information, vehicle information, environmental information and other data in a certain way, which can effectively improve the speed of information dissemination and to some extent. Openness, thereby improving traffic safety and efficiency, plays a pivotal role in Intelligent Transportation Systems (ITS). [0003] Vehicle ad hoc network has a wide range of applications in transportation. The initial design and development of the vehicle network mainly focuses o...

AI Technical Summary

Problems solved by technology

But when it comes to VANET, this fully decentralized structure may not be suitable for all situations

If all vehicles send information as independent nodes, it is easy to form serious local network congestion

At the same time, in the current application, the communication mode between vehicles as independent nodes is relatively simple and not flexible enough

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