Air-ground converged communication method based on unmanned aerial vehicle mode conversion

Abstract

The invention provides an air-ground converged communication method based on unmanned aerial vehicle mode conversion. The method comprises the following steps: enabling the signal frame time slot distribution of an unmanned aerial vehicle to be modeled as a function of economic efficiency and information age in a cruise unmanned aerial vehicle communication mode; establishing and solving by taking the economic efficiency of an air-ground link consisting of the unmanned aerial vehicle and ground nodes as an optimization target and taking the data acquisition and information forwarding age of the unmanned aerial vehicle as a constraint condition; in a static unmanned aerial vehicle communication mode, an unmanned aerial vehicle placement coordinate solving problem is converted into an energy consumption minimization problem taking an unmanned aerial vehicle three-dimensional coordinate as a dependent variable, and the energy consumption minimization problem is solved. And on the basis, establishing a function relationship between the economic efficiency and the state transition rate of the air-ground link by using Markov state transition, and further solving the state transition rate of the unmanned aerial vehicle by taking economic efficiency maximization as a target. By dynamically selecting the working mode of the unmanned aerial vehicle according to the wireless communication environment, a large amount of mechanical energy consumption caused by frequent cruise of the unmanned aerial vehicle can be avoided, and the economic efficiency of a communication link of the unmanned aerial vehicle is effectively improved.

Description

technical field [0001] The invention relates to the technical field of air-ground system communication for unmanned aerial vehicle mode conversion, in particular to an air-ground fusion communication method based on unmanned aerial vehicle mode conversion. Background technique [0002] At present, the existing UAV communication working modes mainly include cruise mode and static mode. UAVs working in cruise mode periodically fly to the vicinity of the target node to collect and transmit data, thus consuming a large amount of flight mechanical energy consumption, which greatly reduces the endurance of UAVs. UAVs communicating in static mode select an optimal location between target nodes for data collection and transmission. Although this mode saves a lot of energy consumption generated by flight, it reduces the quality of signal transmission due to the distance from the target node. Contents of the invention [0003] In order to solve the above problems, the present inve...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above problems, the present invention discloses that in order to overcome the disadvantage that the existing UAV communication mode cannot take into account both mechanical energy consumption and signal transmission quality, the present inventio

Images