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A service migration path selection method in mobile edge computing

A migration path and edge computing technology, applied in wireless communication, electrical components, etc., can solve problems such as service experience degradation and service interruption

Active Publication Date: 2021-12-24
BEIJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the distance between a moving smart device and its edge server is greater than a certain threshold, it will cause serious service experience degradation or even service interruption.

Method used

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  • A service migration path selection method in mobile edge computing
  • A service migration path selection method in mobile edge computing
  • A service migration path selection method in mobile edge computing

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Embodiment Construction

[0014] In order to make the object, technical solution and advantages of the present invention clearer, the solutions of the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0015] The present invention plans a service migration path from the source edge server to the target edge server, and there are two related optimization objectives, namely, migration price and time. Depends on the bandwidth of the network connection. Then, how to fuse the two optimization objectives is a problem. The present invention proposes a method for planning an optimal service migration path based on the goal of minimizing transmission time delay and transmission cost under the condition of limited network link bandwidth.

[0016] According to an embodiment of the present invention, a method for selecting a service migration path in mobile edge computing, the flowchart of which is as follows figure 2 As shown, the method incl...

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Abstract

The present invention provides a service migration path selection method in mobile edge computing. The method includes: A. Finding the path with the smallest transmission cost between the source edge server and the target edge server according to the Dijkstra algorithm as the shortest path; the transmission cost includes transmission Delay and transmission price; B. Set the optimal transmission path set, if the shortest path exists, save the shortest path to the optimal transmission path set, according to the narrowest bandwidth in the shortest path and the service The migration time threshold determines the minimum amount of data transferred in the shortest path. If the minimum amount of data transferred in the shortest path is not less than the amount of data to be transferred for the service to be transferred; then perform step C, return the shortest path and the required The transmission time required under the shortest path is the time threshold for the service migration. The adoption of the present invention can minimize the transmission time delay and transmission cost under the condition that the bandwidth of the network link is limited, so as to ensure that the user is not affected by the degradation of the network experience caused by the service migration.

Description

technical field [0001] The invention relates to the field of service migration in mobile edge computing, in particular to a method for selecting a service migration path in mobile edge computing. Background technique [0002] As a concept in network architecture, mobile edge computing allows mobile users to migrate some computing tasks from the remote central cloud to the edge server of the edge network represented by cellular base stations and WI-FI access points. Part of the computing tasks of the service can be performed on the edge server to avoid the high delay in the remote cloud, and at the same time alleviate the limited battery capacity, CPU, memory and other resources of the terminal. Compared with the traditional centralized mobile cloud computing model, the computing resources for processing user tasks in mobile edge computing are closer to the user in terms of geographical location and logical location, which improves the problems of high transmission delay and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/02H04W40/12
CPCH04W40/02H04W40/12
Inventor 王尚广许金良杨放春
Owner BEIJING UNIV OF POSTS & TELECOMM