Task unloading method and system in vehicle edge computing network

An edge computing and edge server technology, applied in the field of wireless communication, can solve problems such as high complexity, large delay, and high computing power requirements of edge servers, and achieve the effect of solving optimization problems and maximizing utility

Active Publication Date: 2020-12-01
SHANDONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The inventors found that (1) most of the existing research on offloading of vehicle computing tasks is to leave all the vehicle tasks locally or to completely offload them. Choose, if you choose to uninstall all, the computing power of the edge server is very high, and you need to pay the server while using the computing resources of the edge server, which is relatively expensive for the vehicle. Calculation, due to the limited computing resources of the vehicle, it may cause a large delay; (2) the existing centralized method is based on the need to obtain global information, which is complex and requires a large amount of overhead

Method used

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  • Task unloading method and system in vehicle edge computing network
  • Task unloading method and system in vehicle edge computing network
  • Task unloading method and system in vehicle edge computing network

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Experimental program
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Embodiment 1

[0039] This embodiment provides a task offloading method in a vehicle edge computing network;

[0040] Such as figure 2 and image 3 As shown, the task offloading method in the vehicle edge computing network includes:

[0041] S101: Obtain the initial number of unloaded bits and unit price of the vehicle, and establish the utility function of the edge server;

[0042]Obtain the data transmission rate between the vehicle and the edge server selected by the vehicle, the time delay generated by the computing task between the vehicle and the edge server selected by the vehicle, and the cost required for using the computing resources of the edge server, and establish the utility function of the vehicle;

[0043] S102: According to the utility function of the edge server, establish an optimization problem of maximizing the utility of the edge server; according to the utility function of the vehicle, establish an optimization problem of maximizing the utility of the vehicle;

[0...

Embodiment 2

[0137] This embodiment provides a task offloading system in a vehicle edge computing network;

[0138] Task offloading system in vehicle edge computing network, including:

[0139]The obtaining module is configured to: obtain the initial unloaded bit number and unit price of the vehicle, and establish the utility function of the edge server; Calculate the delay generated by the task and the cost of using the edge server computing resources to establish the utility function of the vehicle;

[0140] The model building module is configured to: according to the utility function of the edge server, establish an optimization problem model for maximizing the utility of the edge server; according to the utility function of the vehicle, establish an optimization problem for maximizing the utility of the vehicle;

[0141] The solution module is configured to: solve the optimization problem based on the Steinberg game theory, and obtain the optimal solution of the vehicle selection vari...

Embodiment 3

[0147] This embodiment also provides an electronic device, including: one or more processors, one or more memories, and one or more computer programs; wherein, the processor is connected to the memory, and the one or more computer programs are programmed Stored in the memory, when the electronic device is running, the processor executes one or more computer programs stored in the memory, so that the electronic device executes the method described in Embodiment 1 above.

[0148] It should be understood that in this embodiment, the processor can be a central processing unit CPU, and the processor can also be other general-purpose processors, digital signal processors DSP, application specific integrated circuits ASIC, off-the-shelf programmable gate array FPGA or other programmable logic devices , discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, o...

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Abstract

The invention discloses a task unloading method and system in a vehicle edge computing network. The method comprises the steps: obtaining the initial unloading bit number and unit price of a vehicle,and building a utility function of an edge server; obtaining a data transmission rate between the vehicle and an edge server selected by the vehicle, a time delay generated by a calculation task between the vehicle and the edge server selected by the vehicle, and a cost required for calculating resources by using the edge server, and establishing a utility function of the vehicle; establishing anoptimization problem of maximizing the utility of the edge server according to the utility function of the edge server; establishing an optimization problem of maximizing the utility of the vehicle according to the utility function of the vehicle; solving the optimization problem based on the Steinberg game theory to obtain a vehicle selection variable and an unloading bit number variable corresponding to the equilibrium point and an optimal solution of the unit price collected by the edge server; and based on the vehicle selection variable and the unloading bit number variable corresponding to the equilibrium point and the optimal solution of the unit price collected by the edge server, realizing unloading of the vehicle task.

Description

technical field [0001] The present application relates to the technical field of wireless communication, in particular to a task offloading method and system in a vehicle edge computing network. Background technique [0002] The statements in this section merely mention the background art related to this application, and do not necessarily constitute the prior art. [0003] With the advent of the Internet of Things (IoT) era, everything is interconnected, and the Internet of Vehicles, as a key branch of the Internet of Things, has become an indispensable part of modern transportation. With the rise and development of various applications, people's requirements for vehicle performance have gradually increased, and the demand for high-speed computing and low latency has become increasingly prominent. The application requirements of vehicle terminals pose greater challenges to vehicles with limited resources. The limited computing resources of the vehicle itself cannot meet th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/50G06N5/04H04L29/08
CPCG06F9/5072G06F9/5083G06N5/042H04L67/12G06F2209/509G06F2209/502H04L67/1001Y02T10/40
Inventor 田杰刘爽支媛边际陆佃杰
Owner SHANDONG NORMAL UNIV
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