UAV (Unmanned Aerial Vehicle) air computing system based on full-duplex relay and trajectory and power optimization method

A computing system and power optimization technology, applied in constraint-based CAD, design optimization/simulation, calculation, etc., can solve the problem that the sensor and the base station cannot communicate directly, and achieve the effect of trajectory and power optimization

Active Publication Date: 2022-05-13
CHINA UNIV OF MINING & TECH
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  • Claims
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AI Technical Summary

Problems solved by technology

In this system, the UAV aggregates and receives information from sensors through the airborne base station, and realizes the transmission and aggregation of multiple sensor data in a single time slot. However, in a wireless sensor network with a complex environment, the sensor and the base station cannot communicate directly.

Method used

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  • UAV (Unmanned Aerial Vehicle) air computing system based on full-duplex relay and trajectory and power optimization method
  • UAV (Unmanned Aerial Vehicle) air computing system based on full-duplex relay and trajectory and power optimization method
  • UAV (Unmanned Aerial Vehicle) air computing system based on full-duplex relay and trajectory and power optimization method

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Embodiment Construction

[0054] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0055] The schematic diagram of the UAV aerial computing system of the present invention is as figure 1 As shown, it includes: a base station, a UAV and K sensors. The UAV collects and aggregates ground sensor data through air computing, and forwards it to the base station through a full-duplex relay. As a full-duplex relay, the UAV works in the convergence-forward mode (Fusion and Forward, FF).

[0056] The realization process of track and power optimization method of the present invention is as follows:

[0057] (1) Taking the UAV flight starting point as the origin, establish a three-dimensional Cartesian coordinate system

[0058] The horizontal coordinate of sensor k is expressed as where x k and y k respectively represent the abscissa and ordinate of the sensor;

[0059] The ground sensor group is expressed as K is the...

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Abstract

The invention discloses a UAV (Unmanned Aerial Vehicle) air computing system based on a full-duplex relay and a trajectory and power optimization method. The UAV air computing system adopts a UAV as the full-duplex relay to carry out data aggregation and forwarding; according to the method, the optimization problem under the constraints of the sensor transmitting power, the information transmission rate, the UAV track and the de-noising factor is solved by taking the minimization of the air calculation time mean square error as the target, and the overall joint optimization problem is solved. And determining each optimization variable one by one by adopting an alternate optimization method according to the high coupling of the optimization variables. According to the method, the mean square error minimization under the guarantee of the communication rate is realized, the optimization problem is decomposed into four independent sub-optimization problems, and the optimization of the UAV track and power is realized by a low-complexity algorithm.

Description

technical field [0001] The invention relates to a UAV aerial computing system and a trajectory and power optimization method, in particular to a full-duplex relay-based UAV aerial computing system and a trajectory and power optimization method. Background technique [0002] Due to the advantages of strong mobility, flexible configuration, and line-of-sight links, UAVs (Unmanned Aerial Vehicle, UAV) are increasingly widely used in the field of wireless communication, and UAVs can also move to a location close enough to the sensor in harsh environments. place, it can avoid long-distance information transmission, save the power of the sensor, and the influence of noise. In the air-to-ground transmission, the UAV is at a high altitude, and the line-of-sight wireless transmission with the sensor is usually used, which can reduce the probability of deep channel fading. Since sensors and base stations are often unable to communicate directly, using UAV as a relay has become an imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04W52/06H04W72/04H04L5/00H04W84/06H04W84/18G06F30/20G06F111/04G06F119/06G06F119/10
CPCH04B7/18504H04W52/06H04W72/0446H04W72/0473H04L5/0001H04L5/0094H04W84/06H04W84/18G06F30/20G06F2111/04G06F2119/06G06F2119/10Y02D30/70
Inventor 李松李佳琦孙彦景王博文周玉云霄陈瑞瑞
Owner CHINA UNIV OF MINING & TECH
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