Design And Implementation Of Distributed Fog Computing Platform Supporting Narrowband And Weak Connection

The fog calculation is a service and application on the edge server close to the sensor network and terminal equipment outside the central server.It utilizes the idle computing resources near the demand point to migrate the central service to provide limited computing,network and storage.service.As a derivative of cloud computing,fog computing can solve problems such as excessive delay,excessive load on the central server,and excessive network transmission bandwidth.This paper aims to design and implement a distributed fog computing platform that supports narrowband and weak connections.Firstly,the background and significance of designing and implementing distributed fog computing platform supporting narrowband and weak connection are expounded,and the main work that needs to be completed is clarified.Then in-depth study of the relevant communication architectures and components used in the relevant architectures and technologies involved.Then,the functional requirements and some non-functional requirements are clarified,and the solutions to the two key problems are described in detail for the problems in the requirements.The first one is how to effectively solve the problem of dynamic task assignment in the scenario of fog calculation.The second is how to effectively solve the problem of resource location in the edge region under the fog calculation scenario.Next,according to the fog calculation scene and the actual demand,the overall architecture of the distributed Fog computing platform and the interface of each part are designed in detail,and some core modules are described in detail according to some application scenarios of the system.Finally,the whole system is deployed,the functional testing of each module is completed,and the performance test is carried out in the weak network environment,and the deficiency of the system and the possible improvement in the future are given.