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Direct to Cell VLEO SatCom System Provide Low E2E Latency in STIN

  • Harbin Institute of Technology
  • Ltd

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Large scale low earth orbit (LEO) satellite constellations provide global Internet services for mobile terminals. In this paper, we first give an architectural model of the Direct to Cell satellite communications(SatCom) system. Then we analyze the terrestrial coverage and Doppler shift of the very low earth orbit (VLEO) satellites based on the abstracted geometric architecture. In particular, we simplify the Doppler shift closure expression compared to the conventional expression. We compare the end to end (E2E) latency of Satellite Terrestrial integrated network (STIN) and traditional terrestrial networks (TN). According to the different scenarios, we propose suitable location known and altitude known E2E transmission schemes. The proposed E2E transmission strategy based on maximum inter satellite links (ISLs) requires the least number of satellites and provides lower E2E transmission latency, with a 28% improvement over traditional terrestrial E2E transmission, which fully illustrate the E2E latency advantage of STIN. Finally, we obtain the areas of lower E2E latency for D2C VLEO SatCom transmissions.

Original languageEnglish
Title of host publicationWireless and Satellite Systems - 14th EAI International Conference, WiSATS 2024, Proceedings
EditorsHsiao-Hwa Chen, Weixiao Meng
PublisherSpringer Science and Business Media Deutschland GmbH
Pages42-52
Number of pages11
ISBN (Print)9783031861956
DOIs
StatePublished - 2025
Event14th EAI International Conference on Wireless and Satellite Systems, WiSATS 2024 - Harbin, China
Duration: 23 Aug 202425 Aug 2024

Publication series

NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
Volume605 LNICST
ISSN (Print)1867-8211
ISSN (Electronic)1867-822X

Conference

Conference14th EAI International Conference on Wireless and Satellite Systems, WiSATS 2024
Country/TerritoryChina
CityHarbin
Period23/08/2425/08/24

Keywords

  • Doppler shift
  • E2E latency
  • ISLs
  • STIN
  • VLEO

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