Munari, Andrea (2022) On the Value of Retransmissions for Age of Information in Random Access Networks without Feedback. In: 2022 IEEE Global Communications Conference, GLOBECOM 2022. IEEE Globecom, 2022-12-04 - 2022-12-08, Rio de Janeiro, Brazil. doi: 10.1109/GLOBECOM48099.2022.10001019. ISBN 978-1-6654-3540-6. ISSN 2334-0983.
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Kurzfassung
We focus on a slotted ALOHA system without feedback, in which nodes transmit time-stamped updates to a common gateway. Departing from the classical generate-at-will model, we assume that each transmitter may not always have fresh information to deliver, and tackle the fundamental question of whether sending stale packets can be beneficial from an age-of-information standpoint. Leaning on a signal-flow-graph analysis of Markov processes the study reveals that, when packets can be lost due to channel impairments, retransmissions can indeed lower AoI for low generation rates of new information, although at a cost in terms of throughput.
elib-URL des Eintrags: | https://elib.dlr.de/192003/ | ||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||
Titel: | On the Value of Retransmissions for Age of Information in Random Access Networks without Feedback | ||||
Autoren: |
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Datum: | Dezember 2022 | ||||
Erschienen in: | 2022 IEEE Global Communications Conference, GLOBECOM 2022 | ||||
Open Access: | Nein | ||||
In SCOPUS: | Ja | ||||
In ISI Web of Science: | Ja | ||||
DOI: | 10.1109/GLOBECOM48099.2022.10001019 | ||||
ISSN: | 2334-0983 | ||||
ISBN: | 978-1-6654-3540-6 | ||||
Stichwörter: | age of information; IoT systems; random access; ALOHA | ||||
Veranstaltungstitel: | IEEE Globecom | ||||
Veranstaltungsort: | Rio de Janeiro, Brazil | ||||
Veranstaltungsart: | internationale Konferenz | ||||
Veranstaltungsbeginn: | 4 Dezember 2022 | ||||
Veranstaltungsende: | 8 Dezember 2022 | ||||
Veranstalter : | IEEE | ||||
DLR - Schwerpunkt: | Raumfahrt | ||||
DLR - Forschungsgebiet: | R KNQ - Kommunikation, Navigation, Quantentechnologie | ||||
Standort: | Oberpfaffenhofen | ||||
Institute & Einrichtungen: | Institut für Kommunikation und Navigation > Satellitennetze |
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