The invention discloses an unmanned aerial vehicle power and trajectory collaborative optimization method, which comprises the steps of introducing an NOMA communication technology into an unmanned aerial vehicle Internet of Things, and establishing a multi-unmanned aerial vehicle auxiliary FD-NOMA model in combination with full-duplex communication; a communication system model is established, the communication system model comprises an FD-NOMA communication system composed of a plurality of unmanned aerial vehicles carrying the NOMA technology, a plurality of uplink users and a plurality of downlink users, and the plurality of unmanned aerial vehicles provide communication for the plurality of uplink users and the plurality of downlink users; clustering users of a plurality of uplinks and downlinks by adopting a two-stage hybrid dynamic clustering mode, and allocating an unmanned aerial vehicle to communicate with the users; establishing a Markov decision process model, and optimizing the optimal position and power of the unmanned aerial vehicle based on a DDPG algorithm; according to the scheme, based on an optimization algorithm of a DDPG framework, the optimal position and power distribution of the unmanned aerial vehicle in each time slot are optimized according to the clustering result and the real-time coordinates of the uplink and downlink users, so that the total rate of all the users in the total time length is maximized.
本发明公开了一种无人机功率和轨迹协同优化方法,其包括引入NOMA通信技术至无人机物联网中,并结合全双工通信建立多无人机辅助FD‑NOMA模型;建立通信系统模型,其包括若干搭载NOMA技术的无人机、若干上行链路的用户和若干下行链路的用户构成的FD‑NOMA通信系统,其中若干无人机为若干上行链路的用户和若干下行链路的用户提供通讯;采用二阶段混合动态聚类的方式对若干上、下行链路的用户进行聚类,并分配无人机对其进行通讯;建立马尔科夫决策过程模型,并基于DDPG算法对无人机的最佳位置和功率进行优化;本方案基于DDPG框架的优化算法,根据上下行用户的聚类结果和实时坐标,优化每一时隙无人机的最佳位置和功率分配,使得总时长内所有用户的总速率最大化。
Unmanned aerial vehicle power and trajectory collaborative optimization method
一种无人机功率和轨迹协同优化方法
2024-07-02
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / H04W WIRELESS COMMUNICATION NETWORKS , Drahtlose Kommunikationsnetze |
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