Method and system for establishing 3-dimension spatio temporally correlated group mobility model of unmanned aerial vehicle mobile ad hoc network node

Abstract

The invention provides a method and system for establishing a 3-dimension spatio temporally correlated group mobility model of an unmanned aerial vehicle mobile ad hoc network node. The method comprises an initialization step, a selection step, a member node setting step and a logic center node setting step. The method also comprises the step that a member node generates a base speed, direction and pitch angle value through utilization of a Gauss Markov stochastic process; and the member node calculates to obtain the final speed, direction and pitch angle value at the current moment by referring to the speed, direction and pitch angle value of a logic center node at the current moment. The method has the beneficial effects that a time correlation mobility track is established through utilization of the Gauss Markov stochastic process; the node mobility space correlation is established through a method of setting the logic center node; and the mobility state of the unmanned aerial vehicle mobile ad hoc network node is decomposed into three dimensions of the speed, the direction and the pitch angle, thereby establishing the 3-dimension space mobility model and establishing the mobility model applicable to various scenes.

Description

technical field [0001] The invention relates to the technical field of wireless mobile ad hoc networks, in particular to a method and system for constructing a three-dimensional time-space related group movement model of UAV ad hoc network nodes. Background technique [0002] Mobility model is the basic technology to carry out research on wireless mobile ad hoc networks. [0003] The mobile model is an abstraction of the node's movement mode, describing the movement mode of the node, including changes in position, velocity, and acceleration, etc., and describing how the node moves. [0004] A series of time-varying trajectories generated by the mobile model is the basis for building a mobile simulation environment, and is widely used in the performance evaluation of wireless network-related protocols and algorithms. [0005] There are currently two types of mobile models: [0006] 1. The entity movement model focuses on describing the individual movement law of a single no...

AI Technical Summary

Problems solved by technology

[0010] 2. The existing group mobility model is aimed at low-speed mobile ad hoc networks on the ground, which cannot reflect the UAV ad hoc network movement scenario

For example, in the queue movement model, all nodes move forward in a vertical or horizontal queue. This movement model is aimed at a single movement scenario and is not suitable for task-oriented network forms such as UAV self-organizing networks.

Secondly, the existing group movement model describes the movement of nodes on a two-dimensional plane, which cannot reflect the movement rules of UAV nodes in three-dimensional space

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