{"title":"Toward Bandwidth-efficient Data Distribution in Satellite Networks","authors":"Jianfeng Xu, Liming Wang, Chen Song, Ding Tang, Zhen Xu","doi":"10.2991/TLICSC-18.2018.63","DOIUrl":"https://doi.org/10.2991/TLICSC-18.2018.63","url":null,"abstract":". In the satellite communication system, the satellite-ground link acts as an intermediary connecting the space network with the terrestrial network. Unfortunately, this link has become a bottleneck due to bandwidth fatigue, which seriously threatens the availability of network services. Besides, as a typical open channel, the satellite-ground link faces numerous security threats, such as signal interception and interference. In response, solutions have been developed to mitigate such a bottleneck. However, the existing schemes cannot achieve the security and efficiency of transmission concurrently. In this paper, we propose a lightweight data distribution mechanism, which economizes the satellite-ground link bandwidth through request aggregation and service subscription. Meanwhile, it enables the secure transmission by employing digital signature technology. Further, to reduce the service delay, we design a caching mechanism based on resource popularity prediction. Simulation experiments validate the higher bandwidth efficiency of our solution, and thus greatly improving the availability of satellite services.","PeriodicalId":444029,"journal":{"name":"Proceedings of the 2018 International Conference on Transportation & Logistics, Information & Communication, Smart City (TLICSC 2018)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126813405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}