Unmanned aerial vehicle assisted backscatter communication device and resource allocation control method

A technology of backscattering and communication devices, applied in wireless communication, unmanned aircraft, motor vehicles, etc., can solve the problems of wireless communication channel fading, large difference in communication performance, and deterioration of wireless communication channels

Active Publication Date: 2020-01-24
GUANGDONG UNIV OF TECH
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Problems solved by technology

[0008] In the existing backscatter communication research, the traditional design is generally based on a fixed base station, which makes the communication performance of backscatter devices at different positions in the system vary greatly, and faces serious fai

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  • Unmanned aerial vehicle assisted backscatter communication device and resource allocation control method
  • Unmanned aerial vehicle assisted backscatter communication device and resource allocation control method
  • Unmanned aerial vehicle assisted backscatter communication device and resource allocation control method

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Example Embodiment

[0060] Specific embodiment 1: as figure 1 As shown: in a certain area, some low-power sensors called backscatter devices 4 are randomly deployed on the ground, and the UAV 3 flies in the air at a fixed height as a control center. In the downlink, the UAV 3 transmits commands to the backscatter device 4; the backscatter device 4 selects the best working mode after calculation by the ground control module, and absorbs energy or reflects radio frequency signals. In the uplink, the backscatter device 4 transmits local information by reflecting radio frequency signals, and the UAV 3 performs wireless information collection tasks. In the present embodiment, time division multiplexing protocol and full-duplex mode are used, that is, at any moment, the working state of the device of the present invention has:

[0061] The UAV 3 transmits wireless energy to the backscatter device 4 through the downlink, and all the backscatter devices 4 receive the energy.

[0062] The UAV 3 transmit...

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Abstract

In existing backscatter communication research, the communication performance difference of backscattering equipment at different positions in the system is large, we face the serious fairness problemin order to overcome the defects of existing research,the invention provides an unmanned aerial vehicle auxiliary backscatter communication device and a resource allocation control method. The control assembly comprises a data acquisition module, an unmanned aerial vehicle control module, a track control module, a communication control module and a working mode control module. The backscatteringequipment assembly comprises a ground control module, a working mode selection module, an energy receiving control module, a signal reflection control module and an energy collector. According to theinvention, the unmanned aerial vehicle is used as a control center to transmit and receive an information command to the equipment, and the backscattering equipment collects energy or reflects a signal to transmit information. The flight path is optimized by utilizing the flexible mobility and operability of the unmanned aerial vehicle, so that the distance between the unmanned aerial vehicle andthe sensor is effectively shortened, and the throughput of a communication system is improved.

Description

technical field [0001] The present invention relates to the field of unmanned aerial vehicle (UAV) technology application and backscatter communication (Backscatter Communication) field emerging in recent years. The present invention is to jointly optimize and control the flight trajectory and communication resource allocation of the unmanned aerial vehicle to improve the wireless information transmission throughput of the system. An unmanned aerial vehicle-assisted backscatter communication device and a resource allocation control method for quantitative purposes. Background technique [0002] When the Internet of Things comes in the future, hundreds of millions of tiny embedded sensor devices will be required in the environment to support the communication of the Internet of Things network. These devices must meet the characteristics of small size, strong battery life, and device communication. For micro-embedded devices, traditional mains power supply and battery power s...

Claims

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Application Information

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IPC IPC(8): H04B7/185H04B5/00H04L25/02H04W72/08
CPCH04B7/18506H04B7/18504H04B5/0037H04L25/0202B64U2101/20H04W72/542
Inventor 许杰陈锦昌谢礼峰
Owner GUANGDONG UNIV OF TECH
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