Unmanned aerial vehicle network route selection method and device and unmanned aerial vehicle node

Abstract

The embodiment of the invention provides an unmanned aerial vehicle network route selection method, an unmanned aerial vehicle network route selection device and an unmanned aerial vehicle node, and belongs to the technical field of wireless communication. The method comprises the following steps: when judging that a destination node is not in a communication range of an unmanned aerial vehicle node, using a space straight line between a source node and the destination node as an optimal virtual routing line, determining virtual relay nodes on the line, selecting a reference node from the virtual relay nodes, receiving an actual position and a motion state sent by each neighbor node in the communication range of the unmanned aerial vehicle node, and determining prediction positions of theneighbor nodes in the current time period, calculating a corresponding evaluation value by using each prediction position, separately applying the corresponding evaluation values to a utility function, determining the neighbor node with the minimum corresponding utility function value as a next-hop relay node, and triggering the next-hop relay node to continue to perform routing selection for thedestination node. According to the scheme, the problem that the network communication routing link of the unmanned aerial vehicle is unreliable due to the high-speed mobility of the unmanned aerial vehicle is solved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for selecting a UAV network route and a UAV node. Background technique [0002] Due to the ability of autonomous flight, rapid deployment and flexible networking, drones have great application potential in public and civil fields, such as emergency communications, environmental monitoring, border surveillance and monitoring, aerial photography, and survivors in disasters Search and rescue etc. Compared with single UAV system, multi-UAV system can complete the task more efficiently and economically. In a multi-UAV system, due to the rapid mobility of UAVs, it will lead to dynamic changes in the topology of the UAV network, making the routing of UAVs unstable. [0003] In the prior art, the UAV routing algorithm does not consider the impact of the UAV's fast mobility on the stability of the routing algorithm, which will undoubtedly lead ...

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Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a UAV network routing selection method, device, and UAV node to solve the problem of unreliable UAV network communication routing links caused by the high-speed mobility of UAVs The problem

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