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Research On Management And Control Strategies Of Mec-Enabled Space-Air Network Data

Posted on:2022-10-11Degree:MasterType:Thesis
Country:ChinaCandidate:S Y HuangFull Text:PDF
GTID:2518306338967019Subject:Information and Communication Engineering
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The air-space network with UAV and communication satellite as the carriers has a direct impact on the future mobile communication network's service capacity and the carrying capacity of complex services.Therefore,this article mainly focuses on both of these non-terrestrial network carriers and then designs data control scheme for concrete business cases respectively based on 5G MEC technology,including computationally intensive business data offloading and large bandwidth data smart caching and pushing,which are aimed at resolving the problem of high latency for air-space network in complex business data control problems.Firstly,as the carrier of space network,unmanned aerial vehicles(UAVs)undertake more and more diverse computationally intensive tasks.However,on the one hand,due to its loading limit,the UAV cannot carry high-performance computing equipment,resulting in a lack of local computing resources.On the other hand,its complex network access environment and limited battery life have a substantial impact on the capability of stereo network and computing data control strategy.To solve the problems above,this study designs more fine-grained aerial data offloading plan and specifically includes:the standard way of quantitative computing tasks,offloading area selection based on the distribution of effective MECs,task dividing based on shard model,path planning of 3D design aiming at time delay reduction,etc.Compared to the baseline scheme without the selection of offloading region,this paper is excellent in data offloading performance.In particular,the algorithm in this article can reduce the total task execution time to at least 25%.Next,in view of the satellites communication network data control and management,this paper utilizes the 5G technology and the application of satellite communication experience,combined with MEC technology,and then build the heterogeneous network interface,satellite back-haul and cache function such as delivery acceleration,hot content recommendation platform for the intelligent 5G MEC.The keys are to design a set of integration of gateway validation and data cache and to push controls of content including recommendation and cache pushing to the back-end acceleration program.The proposed scheme greatly enhances the horizontal extensibility of the MEC platform and the instant response capability.Via engineering practice test and monitoring the background network data,this paper verifies the positive significance of edge computing platform to the network data control of Air-Ground network.In particular,the average request latency of stream media content is reduced by 50%.Finally,this paper shows the effectiveness of the proposed algorithm through theoretical simulation and the project test of MEC platform of satellite network,and proved that the full integration of computing resources of ground network and communication resources of air-space network with MEC technology could achieve the support of low-latency response demand of data service to a certain extent.
Keywords/Search Tags:MEC, space-air network, UAV, communication satellites, data management and control
PDF Full Text Request
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