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Method for reducing calculation unloading energy consumption of Internet of Things

A computing offloading, IoT technology, applied in the direction of energy reduction, advanced technology, power management, etc., can solve the problems of limited energy and weak computing power, and achieve the effect of improving performance and reducing network energy consumption

Active Publication Date: 2020-09-29
ZHEJIANG UNIV OF TECH
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Problems solved by technology

[0002] There are a large number of wireless devices in the Internet of Things, affected by the deployment environment and production costs, these devices have the characteristics of weak computing power and limited energy

Method used

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  • Method for reducing calculation unloading energy consumption of Internet of Things
  • Method for reducing calculation unloading energy consumption of Internet of Things
  • Method for reducing calculation unloading energy consumption of Internet of Things

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with accompanying drawing.

[0032] refer to Figure 1 to Figure 5 , a method for reducing energy consumption of computing offloading in the Internet of Things, comprising the following steps:

[0033] Step 1: If figure 1 , an IoT network architecture composed of m devices and a small base station integrated with an edge cloud. The base station BS has software-defined functions and can communicate with the SDN controller through the southbound interface. The application program is controlled by the SDN through the programmable northbound interface. The SDN controller transmits service requirements, and the SDN controller then schedules all resources within its coverage area through the southbound interface. When any device in the network needs to perform a task, it selects the nearest BS to send a task request. This task consists of computing the arrival rate λ of the task i , the size b of each co...

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Abstract

The invention discloses a method for reducing Internet of Things calculation unloading energy consumption. An Internet of Things network architecture based on edge cloud is established by utilizing the concept of SDN in a next generation network and an edge calculation technology; the average time delay of processing the calculation task in the system and the average time delay of locally processing the calculation task are calculated by the IoT equipment by adopting a queuing theory; a global energy consumption minimization problem is modeled based on time delay constraint for the scene of the Internet of Things into a mathematical problem; an unloading calculation optimization algorithm based on a genetic algorithm is designed to solve an unloading decision of each device in the networkand the number of started edge cloud servers, resource allocation is optimized, and energy consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of 5G network computing offloading, and in particular relates to a method for reducing energy consumption of Internet of Things computing offloading. Background technique [0002] There are a large number of wireless devices in the Internet of Things. Due to the deployment environment and production costs, these devices have the characteristics of weak computing power and limited energy. Therefore, reducing energy consumption and enhancing computing power have become the key to improving network system performance. Edge computing is considered to be one of the most effective solutions. The edge cloud realizes the function of cloud computing through the edge server of the wireless access network. The device nodes in the IoT network can offload all or part of the data to the nearest edge cloud for calculation. On the one hand, the computing power of wireless devices is improved by offloading computation. O...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02H04W52/26
CPCH04W52/0203H04W52/26H04W52/267Y02D30/70
Inventor 田贤忠许婷朱娟
Owner ZHEJIANG UNIV OF TECH
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