Task unloading method based on power control and resource allocation

A resource allocation and power control technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as large delay, network congestion, and high processing delay requirements

Active Publication Date: 2020-06-05
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

However, there are many devices in the industrial field environment, and the computing-intensive tasks generated on the devices have high requirements for processing delay. Uploading a large amount of data to the cloud server will not only cause network congestion, but also cause a large delay

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  • Task unloading method based on power control and resource allocation
  • Task unloading method based on power control and resource allocation
  • Task unloading method based on power control and resource allocation

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Embodiment Construction

[0056] The following describes several preferred embodiments of the present invention with reference to the accompanying drawings to make the technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned herein.

[0057] The task unloading method based on power control and resource allocation in the Industrial Internet of Things of the present invention comprises the following steps:

[0058] (1) System modeling: In the Industrial Internet of Things network, there are n cluster domains, and each cluster domain includes a switch, an edge server configured next to the switch, and several field devices. In a cluster domain, field devices can communicate with switches wirelessly, and offload computing tasks to edge servers in the cluster domain through switches for computing. Field devices and switches in different clust...

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Abstract

The invention discloses a task unloading method based on power control and resource allocation, and relates to the field of industrial Internet of Things. The method comprises the steps: establishinga cross-domain network model of an industrial field; constructing a calculation model of an equipment task; according to the model, constructing a mixed integer nonlinear programming model for communication power control, resource allocation and calculation unloading problems; decomposing a problem into three sub-problems; solving an optimal communication power and a resource allocation strategy by utilizing convex optimization knowledge, a Lagrange multiplier method and a KKT (Karush-Kuhn-Tucker) condition; after substituting an original target function, solving an optimal decision of a taskcalculation position by utilizing a deep reinforcement learning algorithm, and obtaining an optimal strategy of communication power, resource allocation and the calculation position of task unloading.The method can obtain the optimal strategy in industrial network task unloading, and has the technical effects of reducing the task delay, reducing the equipment energy consumption and ensuring the service quality.

Description

technical field [0001] The invention relates to the field of industrial internet of things, in particular to a task offloading method based on power control and resource allocation. Background technique [0002] Industrial Internet of Things is the application and promotion of Internet of Things technology in the industrial field. Compared with other application fields of the Internet of Things, such as smart medical care and intelligent transportation, the industrial field has higher requirements for real-time and reliability of data. Relevant research shows that most of the collected industrial data needs to be stored and processed in real time. Therefore, it is very necessary to study effective task processing strategies to meet the requirements of low latency and high reliability. [0003] The development of the Industrial Internet of Things puts forward higher requirements on the computing architecture. As a common computing architecture, cloud computing has abundant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L29/08
CPCH04L41/142H04L41/145H04L67/12H04L43/0852H04L43/0876H04L67/125H04L67/10H04L67/1008
Inventor 徐金城周鹏杨博
Owner SHANGHAI JIAO TONG UNIV
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