Unmanned aerial vehicle ad hoc network routing method based on link stability

A UAV and stability technology, applied in the direction of network topology, wireless communication, data exchange network, etc., can solve the problems that the UAV cluster communication system cannot be directly applied, limited computing resources, and limited battery life, etc., to meet the routing requirements Fast response, high computing performance, and improved routing stability

Inactive Publication Date: 2016-08-17
HANGZHOU DIANZI UNIV
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AI Technical Summary

Problems solved by technology

The swarm ad hoc network composed of UAV nodes is characterized by high moving speed (0-100m / s); the onboard computing resources of small UAVs are limited, and the flight control system occupies the main CPU and memory resources to ensure the flight. Stable attitude; limited battery life
In addition, changes in cluster density and the impact of external environmental factors (such as wind speed, obstacles) will also bring additional computing resources and power consumption
Therefore, traditional MANET and VANET networks cannot be directly applied to UAV swarm communication systems

Method used

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  • Unmanned aerial vehicle ad hoc network routing method based on link stability
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  • Unmanned aerial vehicle ad hoc network routing method based on link stability

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with accompanying drawing.

[0014] The purpose of the invention is to improve the routing stability of the UAV cluster. When a routing failure event occurs, the cluster ad hoc network needs to restart the routing calculation process, multicast or broadcast the routing discovery request hop by hop according to the path selection algorithm, and update the routing table information on the UAV node. Since frequent link failures will bring a lot of computing overhead and data forwarding delay, which seriously affects the communication performance of UAV clusters, the key to designing high-performance UAV cluster ad hoc network routing protocols is to consider the stability of routing .

[0015] figure 1 The topology of the UAV cluster is shown, in which the remote control center manages and deploys the actual business of the cluster, such as routing logic operations, and the UAV is responsible for data f...

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Abstract

The invention discloses an unmanned aerial vehicle ad hoc network routing method based on link stability. The link stability is jointly determined by unmanned aerial vehicle node relative speed, single-hop link transmission delay, single-hop link signal intensity and link active time. On the basis that a link life cycle is used as a routing selection restriction parameter, the effect of rapid change of unmanned aerial vehicle cluster topology on routing can be reduced to a large extent, the routing failure frequency can be reduced, and the routing stability can be improved. Meanwhile, as a routing core algorithm is deployed in a centralized server, the operation performance is higher than that of traditional distributed routing operation. A cluster controller maintains all link states of a cluster, the backup path can be selected rapidly in case of a routing failure event, and the requirement for rapid response of routing is met.

Description

technical field [0001] The invention belongs to the technical field of unmanned aerial vehicle networking, and relates to a routing method for an unmanned aerial vehicle ad hoc network based on link stability. Background technique [0002] With the increasing complexity of the environment and business, it is difficult for a single UAV to meet the task requirements, and the UAV cluster can integrate and analyze the information obtained by each UAV node, and achieve the target and target through multi-machine cooperation. A more comprehensive and accurate understanding of the environment. Therefore, large-scale UAV cluster cooperation is an inevitable trend. UAV swarm collaboration mainly relies on the high-performance data link system between UAVs. Its core is to establish a routing protocol that can adapt well to cluster topology changes and realize multi-hop forwarding of data packets between UAVs. [0003] Traditional ad hoc networks (ad hoc) composed of mobile nodes, su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/707H04L12/717H04L12/721H04L12/727H04L12/733H04L12/751H04W84/18H04B17/318H04L45/24H04L45/02H04L45/121H04L45/122H04L45/42
CPCH04B17/318H04L45/02H04L45/12H04L45/121H04L45/123H04L45/124H04L45/20H04L45/22H04L45/42H04W84/18
Inventor 袁振珲孙玲玲
Owner HANGZHOU DIANZI UNIV
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