Optimization method and system for communication quality of unmanned aerial vehicle

Abstract

The invention relates to an optimization method and system for communication quality of an unmanned aerial vehicle. The method comprises the steps of: building a system model, determining a constraintcondition which should be satisfied by unmanned aerial vehicle communication quality optimization, wherein the constraint condition comprises a constraint condition of unmanned aerial vehicle line-of-sight communication; setting a sight distance link probability to be greater than a preset threshold value; and according to the constraint conditions, optimizing any one or more of unmanned aerial vehicle transmitting power, user association and scheduling and an unmanned aerial vehicle track, so that the minimum data rate of all the Internet-of-Things devices is maximized (equivalently, the minimum throughput of all the Internet-of-Things devices is improved to the maximum extent, and the communication quality is improved). According to the technical scheme provided by the invention, the influence of the sight distance link probability on the communication link is considered, so that the sight distance link connection of the unmanned aerial vehicle cannot be kept all the time when the unmanned aerial vehicle flies no matter whether the communication quality of the unmanned aerial vehicle is optimized by optimizing any one or more of the transmitting power of the unmanned aerial vehicle, user association and scheduling and the track of the unmanned aerial vehicle, and the communication stability is ensured.

Description

technical field [0001] The invention relates to the technical field of drones, in particular to a method and system for optimizing communication quality of drones. Background technique [0002] In recent years, drones have been widely used in various fields. UAVs have three main applications in the field of communication, including: direct communication with ground communication equipment as an air base station, cooperative communication with ground base stations as a mobile relay, and flight computing cloud network. Compared with traditional ground communications, low-altitude UAVs have the advantages of faster deployment, more flexible reconfiguration, and better communication channels. More importantly, it can communicate with higher probability in line-of-sight links. [0003] Optimize the performance of UAV communication systems by optimizing the deployment of UAVs, including static deployment and dynamic deployment. Existing technologies comprehensively analyze line...

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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to overcome the deficiencies of the prior art, and provide a method and system for optimizing the communication quality of UAVs, so as to solve the problem of not considering the line-of-sight chain in the process of optimizing the communication quality of UAVs in the prior art. Road probability, which affects the stability of communication

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