Service migration method and system based on movement prediction and multi-layer service deployment

A server and mobile speed technology, applied in the field of service migration, can solve problems such as long service interruption time and heavy network load

Active Publication Date: 2021-05-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above problems, the present invention proposes a service migration method and system based on mobile prediction and multi-layer service deployment to solve the problems of long service interruption time and excessive network load faced by service migration in the current mobile edge computing environment

Method used

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  • Service migration method and system based on movement prediction and multi-layer service deployment
  • Service migration method and system based on movement prediction and multi-layer service deployment

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Experimental program
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specific Embodiment 1

[0074] Simulation experiments are used to compare the network traffic and service interruption time generated by different methods during service migration. Experiments use the real Beijing map data downloaded from OpenStreetMap to evaluate the method of the present invention. Assume that the local MEC server is placed together with the base station, and the regional MEC server is connected to multiple base stations. The base station layout is hexagonal, and the base station interval is 500m. 1951 base stations are deployed in the central area of ​​Beijing, such as Figure 6 shown.

[0075] Take a representative situation as the evaluation benchmark, that is, no matter where the user moves, the service is always migrated to the MEC server closest to the user, and the "Nearest" strategy is implemented. In addition, the method of the present invention is further disassembled as follows:

[0076] 1) PM means service migration only based on the proposed map-based movement predi...

specific Embodiment 2

[0088] Through experiments based on real data and physical platforms, the network traffic and service interruption time generated by different methods during service migration are compared.

[0089] The entire test platform includes four edge servers, a cloud server and a terminal device. The experiment is run in six host virtual machines, among which, two virtual machines act as local MEC servers, two virtual machines act as regional MEC servers, one virtual machine acts as a cloud server, and one virtual machine acts as a user terminal. Each virtual machine is assigned two virtual CPU cores and 2GB of virtual memory. The operating system of each edge MEC server is Ubuntu 18.04LTS, and it runs under the following conditions: (1) runC1.0.1 as the container runtime; (2) Rsync 3.2.3 as the file transfer mechanism; (3) CRIU3.12 as the Checkpoint and restore functions. Linux traffic control is used to control the delay between users, servers and cloud center, and the network ban...

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Abstract

The invention discloses a service migration method and system based on mobile prediction and multi-layer service deployment, belongs to the technical field of mobile edge computing, and is used for solving the problems of overlong service interruption time and overlarge network load faced by service migration in a current mobile edge computing environment. According to the MEC server node prediction method based on the map data, the MEC nodes are accurately predicted, the data are synchronized in advance, the service interruption time during service migration is shortened, and smooth migration of the service is ensured; furthermore, according to a framework based on multi-layer deployment of MEC nodes, smooth service migration in a high-speed mobile environment is met, the number of times of service interruption and redundant flow generated by service migration are reduced, and the network service quality and the user experience quality are improved. The invention provides a practical method which can guarantee the service quality and has high expansibility for the service migration work in the mobile edge computing environment.

Description

technical field [0001] The present invention relates to the technical field of mobile edge computing, in particular to a service migration method and system based on mobile prediction and multi-layer service deployment. Background technique [0002] With the development of smart devices, more and more applications require intensive computing resources and energy-intensive real-time processing, such as artificial intelligence (AI), self-driving cars, interactive games, virtual reality (VR), augmented reality (AR ), intelligent monitoring system, etc. However, due to the limitation of physical size, smart devices with limited computing power and energy capacity cannot effectively support applications. The traditional solution is to cooperate with a remote cloud center, but this method has a large transmission delay, which brings more problems to the core network. Large burden, not suitable for low-latency applications. To meet this challenge, mobile edge computing (MEC), as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L67/1095H04L67/51
Inventor 何慧杨润张伟哲方滨兴
Owner HARBIN INST OF TECH
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