Advanced Routing Algorithms for Low Orbit Satellite Constellations

Oren Markovitz, Michael Segal

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

3 Scopus citations


As of 2018, several low orbit (LEO) constellations are being designed and planned. These include SpaceX, OneWeb, LeoSat, Telesat and lately Amazon Kuiper. Some of these constellations include Inter-Satellite Links (ISL) communication at the initial or second phase as well as on-board processing capabilities. The LEO constellations create a network that includes the satellites (as routing nodes) connected by ISLs, and the satellite terminals that dynamically connect to one or more satellites. The LEO network presents unique challenges to traffic routing and service planning due to dynamic changes in the network topology (interconnection between satellites, and between satellites and terminals). In addition, the LEO latency (which is low, compared to GEO and MEO) is significant when using legacy routing protocols (The constellation end-to-end latency can be in the order of 100 mSecs and ground-to-satellite latency is in the order of 10 mSecs).This paper addresses the problem of sending traffic from a source terminal to a destination terminal connected through multiple satellites while guaranteeing and enabling planning of the service metrics/QoS (bandwidth and latency) and handling satellite handovers.

Original languageEnglish
Title of host publicationICC 2021 - IEEE International Conference on Communications, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9781728171227
StatePublished - 1 Jun 2021
Event2021 IEEE International Conference on Communications, ICC 2021 - Virtual, Online, Canada
Duration: 14 Jun 202123 Jun 2021

Publication series

NameIEEE International Conference on Communications
ISSN (Print)1550-3607


Conference2021 IEEE International Conference on Communications, ICC 2021
CityVirtual, Online


  • Demand Island
  • LEO Routing

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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