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Joint optimization method of flight path and resource scheduling of unmanned aerial vehicle for data distribution

A technology of flight trajectory and resource scheduling, applied in the direction of combustion engine, internal combustion piston engine, wireless communication, etc., can solve the problems of difficult application of data distribution method, unguaranteed node network connectivity, wide distribution of ground nodes, etc., and achieve terrain environment Effects of insensitivity to factors, strong adaptability, and wide application range

Active Publication Date: 2018-11-20
ARMY ENG UNIV OF PLA
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Problems solved by technology

[0006] Aiming at the problem that the existing data distribution method is difficult to apply to the wide distribution of ground nodes and the connectivity of the node network cannot be guaranteed, this invention proposes a method based on UAV data distribution

Method used

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  • Joint optimization method of flight path and resource scheduling of unmanned aerial vehicle for data distribution
  • Joint optimization method of flight path and resource scheduling of unmanned aerial vehicle for data distribution
  • Joint optimization method of flight path and resource scheduling of unmanned aerial vehicle for data distribution

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Embodiment

[0096] Example: A specific embodiment of the present invention is described as follows, the system simulation adopts Matlab software, and the solution of the optimization problem adopts CVX software package. The following embodiments examine the effectiveness of the data distribution-oriented joint optimization method for UAV flight trajectory and resource scheduling designed in the present invention.

[0097] In this example, if figure 2 As shown, the drone flies in the air and distributes data to the ground nodes. In the simulation, consider that K=5 ground nodes are randomly distributed in such as image 3 The size shown is within a square area of ​​1000m x 1000m. The flying height of the UAV is H=100m, and the initial and final positions of the flight are respectively set to q I = [0,0] and q F =[1000,1000]. Considering that the maximum transmission power of the UAV is P max =30dBm, the available channel bandwidth is B max = 1MHz, the energy consumption budget of...

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Abstract

The invention provides a joint optimization method of a flight path and resource scheduling of an unmanned aerial vehicle for data distribution. The method comprises the following steps: performing optimization problem modeling based on data distribution of the unmanned aerial vehicle; preforming optimization problem analysis and derivation; fixing the flight path of the unmanned aerial vehicle, and updating the resource scheduling of the unmanned aerial vehicle; fixing the transmitting power of the unmanned aerial vehicle, and updating the flight state of the unmanned aerial vehicle; and performing joint optimization of the flight path and resource scheduling of the unmanned aerial vehicle. By adoption of the joint optimization method provided by the invention, the data distribution problem when the distribution range of ground nodes is wide and the node network connectivity cannot be guaranteed can be effectively solved; the communication link is improved by using the flight characteristics of the unmanned aerial vehicle, the spectrum utilization rate in the data distribution process of the unmanned aerial vehicle is improved, the energy-saving flight of the unmanned aerial vehicle is achieved, and the data distribution performance is improved.

Description

technical field [0001] The invention belongs to the field of cognitive radio and unmanned aerial vehicle communication of wireless communication technology, and in particular relates to a data distribution-oriented joint optimization method for unmanned aerial vehicle flight trajectory and resource scheduling. Background technique [0002] In recent years, with the development of UAV technology, UAV communication has received more and more attention. On the one hand, the popularity of multimedia services has led to a sharp increase in the volume of wireless communication services. Traditional cellular communications are facing severe challenges, and it is difficult to meet the higher requirements of mobile terminals for service quality and service experience; on the other hand, due to their inherent It can be used as a wireless communication platform in the air, which can not only make up for the lack of wireless communication on the ground, but also independently provide th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/029H04W4/42H04W72/04H04W72/12
CPCH04W4/029H04W4/42H04W72/0473H04W72/542Y02D30/70Y02T10/40
Inventor 王金龙薛震丁国如徐煜华黄斐
Owner ARMY ENG UNIV OF PLA
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