Pathfinding Network Topology Structure and Routing Method for Emergency Communication

Abstract

The invention discloses a road detection network topology structure and a routing method for emergency communication. It mainly solves the problem of complicated topological structure and excessive end-to-end time delay of information transmission in the prior art emergency communication road detection network. Relatively stable vehicle-mounted nodes are formed, and the first layer is formed by individual backpack or hand-held nodes with dynamically changing structures, and individual nodes have relay routing functions. The in-vehicle network is the target network of routing, and the personal network is the source network and relay network of routing. The routing method based on the pathfinding network topology is aimed at the two-hop network, comprehensively considering the transmission delay caused by the different channel conditions of the feasible path, and the processing delay caused by the relay node processing the data packet. Under the condition of limited energy of the individual node , choose the optimal path to transmit the data packet. The invention has simple structure and small end-to-end time delay, and can be used for emergency communication of major sudden disasters in cross-border geological complex areas.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a road exploration network topology structure and a routing method thereof, which can be used for emergency communication of major sudden disasters in cross-border geological complex areas. Background technique [0002] In order to meet the emergency communication needs of major sudden disasters in cross-border geological complex areas, the research on emergency communication systems is an urgently needed technology. [0003] my country is a country prone to natural disasters. Natural disasters such as earthquakes, floods, and transit typhoons occur from time to time. Especially in recent years, major disasters such as earthquakes, floods, mudslides, and fires have occurred frequently. When encountering these emergencies, when the communication facilities are destroyed, the communication is forced to be interrupted, and it is difficult to recover in a short time...

AI Technical Summary

Problems solved by technology

However, due to the continuous mobility of regional mobile ad hoc communication network terminals, the above methods all have complex and unstable network topology, complex networking protocols and data routing, low communication reliability, and excessive end-to-end delay.

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