A computing unloading method based on mobile edge computing in the Internet of Things

An edge computing and computing offloading technology, applied in the field of the Internet of Things, can solve problems such as inability to meet low latency requirements, and achieve the effect of improving reliability and stability

Active Publication Date: 2019-05-21
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

At present, most of the research on MEC considers two computing offloading modes: local offloading and direct offloading to the edge cloud server. Meet low latency requirements

Method used

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  • A computing unloading method based on mobile edge computing in the Internet of Things
  • A computing unloading method based on mobile edge computing in the Internet of Things
  • A computing unloading method based on mobile edge computing in the Internet of Things

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Embodiment Construction

[0067] Below in conjunction with accompanying drawing and example, describe technical scheme of the present invention in detail

[0068] In this example, the number of source devices is N=10, and the number of auxiliary offloading devices is M=20; the distribution range of the devices is [300,500]m away from the edge cloud computing server; the transmission power of the source devices is p i =0.1W, Channel bandwidth B=0.18MHz, auxiliary unloading equipment sending power p j =0.2W, Background noise power spectral density N 0 =-174dBm / Hz; the channel model adopts log-normal shadowing model (Log-Normal Shadowing Model), and the amount of data per frame is d i [r] Obey the Poisson distribution with an average value of 1000kbps; the user mobile model adopts the Gauss-Markov Mobile Model; the social relationship between the source device and the auxiliary offloading device obeys a Gaussian distribution with an average value of 0.5; the device calculation resource f ii , f i0...

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Abstract

The invention belongs to the technical field of Internet of Things task unloading, and particularly relates to a computing unloading method based on mobile edge computing in the Internet of Things. The invention relates to a theoretical framework of Internet of Things (Internet-of-Things-of-Things, IoT), Mobile Edge Computing (MEC), mode selection and node matching, dynamic optimization and the like. According to the technical scheme, local unloading is considered; Direct cloud unloading, Device end offload, Four computing unloading modes of equipment relay forwarding unloading are adopted, the influence of the social relation between the equipment on the unloading service level and the long-term dynamic performance of the system are added and considered, a system long-term income functionrelated to time delay and energy consumption is constructed, and a computing unloading scheme based on edge computing in the Internet of Things is obtained through mode selection and node matching. The method has the beneficial effects that better balance is achieved in the aspects of time delay and energy consumption performance, and the reliability and the stability of the system are improved.

Description

technical field [0001] The invention belongs to the technical field of task offloading of the Internet of Things, and specifically relates to a calculation offloading method based on mobile edge computing in the Internet of Things. The present invention relates to theoretical frameworks such as Internet-of-Things (IoT), Mobile Edge Computing (MEC), mode selection and node matching, and dynamic optimization. Background technique [0002] The Internet of Things (IoT) is an advanced intelligent network architecture based on the Internet that allows all devices to communicate with each other to achieve information interaction, environmental awareness, real-time sharing and other functions, thanks to high-speed real-time mobile devices and seamless connection technology between devices With the emergence of IoT, IoT has received widespread attention and rapid development, and has become one of the foreground technologies for future mobile communication networks. However, with th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L12/24
Inventor 吴明明高玉兰肖悦
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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