Resource allocation method in unmanned aerial vehicle auxiliary network based on wireless energy transmission

Abstract

The invention discloses a resource allocation method in an unmanned aerial vehicle auxiliary network based on wireless energy transmission, and belongs to the field of mobile communication. The methodcomprises firstly, constructing an unmanned aerial vehicle auxiliary network scene composed of a base station, an unmanned aerial vehicle and a user; then separately constructing channel models and channel capacities between the user and the unmanned aerial vehicle and between the base station and the unmanned aerial vehicle; uing the transmitting power of the unmanned aerial vehicle to the userand the channel model between the base station and the unmanned aerial vehicle to construct and solve an unmanned aerial vehicle communication energy consumption model meeting a limiting condition, introducing a centroid concept to optimize the position of the unmanned aerial vehicle under the condition that a time distribution proportion and a power distribution proportion are given, continuously optimizing the time distribution proportion and the power distribution proportion under the condition that the position of the unmanned aerial vehicle is given, and alternately optimizing an optimalsolution; and deploying the unmanned aerial vehicle according to the optimal position of the unmanned aerial vehicle, and allocating wireless resources according to the solved optimal power and timedistribution proportion. According to the invention, the wireless energy is collected to the maximum extent while the requirement of user data rate is met, and the energy consumption is reduced.

Description

technical field [0001] The invention belongs to the field of mobile communication, and in particular relates to a resource allocation method in an unmanned aerial vehicle auxiliary network based on wireless energy transmission. Background technique [0002] Currently, mobile communication plays an increasingly important role in daily life; in some emergency situations, people need to support communication in a very flexible and urgent way, such as natural disasters and temporary hotspots. Therefore, a way for unmanned aerial vehicles (unmanned aerial vehicles, UAVs) to cooperate with ground nodes is proposed, and to serve as flying base stations (base stations, BSs), relay stations or mobile nodes by being equipped with communication and processing modules. Due to the advantages of deployment flexibility, high mobility, and low cost, wireless networks assisted by unmanned aerial vehicles have attracted attention from both industry and academia. [0003] However, due to the ...

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Problems solved by technology

[0008] Although the existing technology provides various solutions for the energy consumption optimization of UAVs, there are few studies on the use of wireless energy transfer technology to power UAVs. , less consideration is given to user data rate requirements

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