Calculation task migration method of ground terminal equipment based on unmanned aerial vehicle

Abstract

The invention discloses a calculation task migration method of ground terminal equipment based on an unmanned aerial vehicle. The method comprises the steps: enabling the ground terminal equipment tounload a part of calculation tasks of the ground terminal equipment to an edge server carried by the unmanned aerial vehicle based on an optimal distribution scheme, enabling the ground terminal equipment to locally execute a part of calculation tasks of the ground terminal equipment, and enabling an edge server carried by the unmanned aerial vehicle to execute calculation tasks unloaded by all ground terminal devices, wherein the optimal allocation scheme is obtained by constructing an optimization problem and solving the optimization problem, and the optimization problem takes the maximization of the total amount of calculation tasks of the unmanned aerial vehicle and all ground terminal devices as a target and takes the energy limit of each ground terminal device, the energy limit of the unmanned aerial vehicle and the bandwidth resource limit as constraint conditions. According to the method, the total calculated amount of the whole system is maximized by jointly optimizing bandwidth allocation, unmanned aerial vehicle tracks, unloading time and local calculation allocation.

Description

technical field [0001] The invention relates to the optimization problem of UAV edge computing, in particular to a calculation task migration method of UAV-based ground terminal equipment. Background technique [0002] On the other hand, due to the rapid development of the Internet, the amount of data has become larger and larger, and many data are no longer stored and calculated locally, but are gradually transferred to the "cloud", and services such as cloud computing and cloud storage have emerged. However, with the emergence of some delay-sensitive applications (such as online games, augmented reality, etc.), cloud computing has gradually exposed its unsolvable shortcomings. Because the server that provides cloud computing is often far away from the terminal, some calculation results cannot be returned as soon as possible (especially in the case of high concurrency and network congestion), which will cause poor user experience. In order to solve this problem, the concep...

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Problems solved by technology

[0003] The ground terminal equipment offloads part of the computing tasks to the edge computing server for calculation. However, since the edge computing server is generally fixed at a specific node in the network and has a certain spatial dist

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