Tactile Application Research Based On Mobile Edge Computing

With the constant development and innovation of network technology,the interaction between human to human,human to environment and human to machine,is undergoing tremendous changes.More and more tactile applications are expected to enable real-time interaction through low-latency network to support immersive and perceptive interactions between operators and the environment,such as tactile applications of healthcare,intelligent transportation and industrial automation.However,traditional mobile cloud computing service places computing resources and storage resources in the core cloud.Due to the congestion and delay of the core network,it is difficult to meet the communication interaction requirements of the tactile applications.Mobile Edge Computing(MEC)provides a low-latency,high-bandwidth cloud computing environment for mobile terminals at the edge of the access network by combining cloud services with network edge.Its proximity computing feature can improve the performance of user experience.Therefore,mobile edge computing can provide network environments with low latency,high bandwidth,telecommunications-class reliability and availability for tactile applications.The research of this paper is about tactile applications based on MEC.By functional division of tactile application of main domain,network domain and target domain,analysis the requirements ofsensor,network and application,further design a scheme of tactile application system based on mobile edge computing.In the laboratory MEC WiCloud platform,design and realize tactile application based on MEC combined with traffic scenarios,which verifies MEC network with low latency and high reliability ensure the tactile application system requirements and realize the development of the tactile applications.This paper mainly completed the following work:(1)The paper investigates tactile Internet,tactile applications and their fields,and introduces the development of the research status of them at home and abroad.It investigates the Mobile Edge Computing and its characteristics,and analyzes the reasons for its application to tactile application.(2)By analyzing the application domains and system requirements of tactile application,the key issues that need to be solved for realizing tactile application are obtaining,presenting,transmitting,and controlling tactile content.Based on this,a tactile application system scheme based on MEC is proposed.The scheme divides tactile application system into three layers:sensor layer,network layer and application layer.The application layer is responsible for obtaining tactile content,the application layer is responsible for tactile content presentation,and the network layer is responsible for tactile content transmission and control.(3)According to the proposed scheme of tactile application based on mobile edge computing,a tactile application system,that is a traffic accident tactile application system,is developed.MEC network WiCloud as a server,using the training model to identify pictures,store user and accidents information,and provide accident-aware content delivery service according to the location of accidents and users.Using mobile intelligent terminals as clients,utilizes its portability,intelligence to access to information acquisition anytime and anywhere.Through the test of MEC platform WiCloud about delay,packet loss and jitter,it confirms that mobile edge computing can provide network services with low latency and high reliability.Through the functional verification and performance testing of traffic accident tactile application system,it evidences utilization of mobile edge computing can ensure the function and user experience of tactile application.The paper researches about tactile application based on mobile edge computing,migrates cloud computing to the access network to provide a low-latency and high-bandwidth network environment for tactile application services,and achieves better application experience performance through computing offloading of tactile applications.