Latency and timeliness in multi-hop satellite networks

Beatriz Soret, Sucheta Ravikanti, Petar Popovski

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

The classical definition of network delay has been recently augmented by the concept of information timeliness, or Age of Information (AoI). We analyze the network delay and the AoI in a multi-hop satellite network that relays status updates from satellite 1, receiving uplink traffic from ground devices, to satellite K, using K–2 intermediate satellite nodes. The last node, K, is the closest satellite with connectivity to a ground station. The satellite formation is modeled as a queue network of M/M/1 systems connected in series. The scenario is then generalized for the case in which all satellites receive uplink traffic from ground, and work at the same time as relays of the packets from the previous nodes. The results show that the minimum average AoI is experienced at a decreasing system utilization when the number of nodes is increased. Furthermore, unloading the first nodes of the chain reduces the queueing time and therefore the average AoI. These findings provide insights for designing multihop satellite networks for latency-sensitive applications.
Original languageEnglish
Title of host publicationICC 2020 - 2020 IEEE International Conference on Communications (ICC)
Number of pages6
PublisherIEEE
Publication date27 Jul 2020
Article number9149009
ISBN (Print)978-1-7281-5090-1
ISBN (Electronic)978-1-7281-5089-5
DOIs
Publication statusPublished - 27 Jul 2020
Event2020 IEEE International Conference on Communications, ICC 2020 - Dublin, Ireland
Duration: 7 Jun 202011 Jun 2020
https://icc2020.ieee-icc.org/

Conference

Conference2020 IEEE International Conference on Communications, ICC 2020
CountryIreland
CityDublin
Period07/06/202011/06/2020
Internet address
SeriesI E E E International Conference on Communications
ISSN1550-3607

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  • Cite this

    Soret, B., Ravikanti, S., & Popovski, P. (2020). Latency and timeliness in multi-hop satellite networks. In ICC 2020 - 2020 IEEE International Conference on Communications (ICC) [9149009] IEEE. I E E E International Conference on Communications https://doi.org/10.1109/ICC40277.2020.9149009