{"title":"Design of buffered double linked list for LEO satellite beam-hopping forwarding","authors":"Yangyang Wan, Wei Hong","doi":"10.1002/sat.1503","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>The beam-hopping technology can solve the problems of uneven user distribution and uneven service demand and improve the efficiency of resource utilization. It is one of the important technologies of future satellite–ground integrated communication. However, the mobility of LEO satellites and the on-demand scheduling of beams make each satellite beam correspond to multiple ground wave positions, which brings great difficulties to data processing. In this paper, after analyzing the difficulties of the data forwarding buffer of the beam-hopping system, a double-linked list structure of user state chain and data buffer chain is proposed, which solves the problem of data forwarding between the satellite and users in the dynamic state and provides an efficient solution for the data exchange of the beam-hopping LEO satellite.</p>\n </div>","PeriodicalId":50289,"journal":{"name":"International Journal of Satellite Communications and Networking","volume":"42 2","pages":"123-133"},"PeriodicalIF":0.9000,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Satellite Communications and Networking","FirstCategoryId":"94","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/sat.1503","RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, AEROSPACE","Score":null,"Total":0}
引用次数: 0
Abstract
The beam-hopping technology can solve the problems of uneven user distribution and uneven service demand and improve the efficiency of resource utilization. It is one of the important technologies of future satellite–ground integrated communication. However, the mobility of LEO satellites and the on-demand scheduling of beams make each satellite beam correspond to multiple ground wave positions, which brings great difficulties to data processing. In this paper, after analyzing the difficulties of the data forwarding buffer of the beam-hopping system, a double-linked list structure of user state chain and data buffer chain is proposed, which solves the problem of data forwarding between the satellite and users in the dynamic state and provides an efficient solution for the data exchange of the beam-hopping LEO satellite.
期刊介绍：
The journal covers all aspects of the theory, practice and operation of satellite systems and networks. Papers must address some aspect of satellite systems or their applications. Topics covered include:
-Satellite communication and broadcast systems-
Satellite navigation and positioning systems-
Satellite networks and networking-
Hybrid systems-
Equipment-earth stations/terminals, payloads, launchers and components-
Description of new systems, operations and trials-
Planning and operations-
Performance analysis-
Interoperability-
Propagation and interference-
Enabling technologies-coding/modulation/signal processing, etc.-
Mobile/Broadcast/Navigation/fixed services-
Service provision, marketing, economics and business aspects-
Standards and regulation-
Network protocols
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