Task Allocation for Real-time Earth Observation Service with LEO Satellites

Mingsong Lv, Xuemei Peng, Wenjing Xie, Nan Guan

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)


Traditional Earth observation (EO) services using satellites mainly observe relatively large-scale objects for applications with no or weak real-time requirements. The rapid development of Low-Earth-orbit (LEO) satellites opens new opportunities to provide EO services for a much wider range of applications by collecting the observation and communication capability of many LEO satellites. The challenge is how to select and coordinate the LEO satellites to accomplish the EO task subject to strong real-time constraints. In this work, we present a holistic solution that precisely models the observation service of a single LEO satellite and allocates the work of a periodic real-time EO task to a group of LEO satellites to meet the real-time requirements. Experiments were conducted to evaluate how the parameters of the LEO satellites and the ground stations impact the satisfiability of real-time requirements. The results provide valuable guidelines for designing LEO satellites and ground stations to provide real-time object observation services.

Original languageEnglish
Title of host publicationProceeding - 43rd IEEE Real-Time Systems Symposium, RTSS 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages13
ISBN (Electronic)9781665453462
Publication statusPublished - Dec 2022
Event43rd IEEE Real-Time Systems Symposium, RTSS 2022 - Houston, United States
Duration: 5 Dec 20228 Dec 2022

Publication series

NameProceedings - Real-Time Systems Symposium
ISSN (Print)1052-8725


Conference43rd IEEE Real-Time Systems Symposium, RTSS 2022
Country/TerritoryUnited States


  • Earth observation
  • LEO satellites
  • real time

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications


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