Details
| Original language | English |
|---|---|
| Title of host publication | ICC 2022 - IEEE International Conference on Communications |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 2090-2095 |
| Number of pages | 6 |
| ISBN (electronic) | 9781538683477 |
| ISBN (print) | 978-1-5386-8348-4 |
| Publication status | Published - 2022 |
| Event | 2022 IEEE International Conference on Communications, ICC 2022 - Seoul, Korea, Republic of Duration: 16 May 2022 → 20 May 2022 |
Publication series
| Name | IEEE International Conference on Communications |
|---|---|
| Volume | 2022-May |
| ISSN (Print) | 1550-3607 |
| ISSN (electronic) | 1938-1883 |
Abstract
We consider networked sources that generate update messages with a defined rate and we investigate the age of that information at the receiver. Typical applications are in cyber-physical systems that depend on timely sensor updates. We phrase the age of information in the min-plus algebra of the network calculus. This facilitates a variety of models including wireless channels and schedulers with random cross-traffic, as well as sources with periodic and random updates, respectively. We show how the age of information depends on the network service where, e.g., outages of a wireless channel cause delays. Further, our analytical expressions show two regimes depending on the update rate, where the age of information is either dominated by congestive delays or by idle waiting. We find that the optimal update rate strikes a balance between these two effects.
ASJC Scopus subject areas
- Computer Science(all)
- Computer Networks and Communications
- Engineering(all)
- Electrical and Electronic Engineering
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ICC 2022 - IEEE International Conference on Communications. Institute of Electrical and Electronics Engineers Inc., 2022. p. 2090-2095 (IEEE International Conference on Communications; Vol. 2022-May).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - A Min-plus Model of Age-of-Information with Worst-case and Statistical Bounds
AU - Noroozi, Mahsa
AU - Fidler, Markus
PY - 2022
Y1 - 2022
N2 - We consider networked sources that generate update messages with a defined rate and we investigate the age of that information at the receiver. Typical applications are in cyber-physical systems that depend on timely sensor updates. We phrase the age of information in the min-plus algebra of the network calculus. This facilitates a variety of models including wireless channels and schedulers with random cross-traffic, as well as sources with periodic and random updates, respectively. We show how the age of information depends on the network service where, e.g., outages of a wireless channel cause delays. Further, our analytical expressions show two regimes depending on the update rate, where the age of information is either dominated by congestive delays or by idle waiting. We find that the optimal update rate strikes a balance between these two effects.
AB - We consider networked sources that generate update messages with a defined rate and we investigate the age of that information at the receiver. Typical applications are in cyber-physical systems that depend on timely sensor updates. We phrase the age of information in the min-plus algebra of the network calculus. This facilitates a variety of models including wireless channels and schedulers with random cross-traffic, as well as sources with periodic and random updates, respectively. We show how the age of information depends on the network service where, e.g., outages of a wireless channel cause delays. Further, our analytical expressions show two regimes depending on the update rate, where the age of information is either dominated by congestive delays or by idle waiting. We find that the optimal update rate strikes a balance between these two effects.
UR - http://www.scopus.com/inward/record.url?scp=85132473833&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2112.11934
DO - 10.48550/arXiv.2112.11934
M3 - Conference contribution
AN - SCOPUS:85132473833
SN - 978-1-5386-8348-4
T3 - IEEE International Conference on Communications
SP - 2090
EP - 2095
BT - ICC 2022 - IEEE International Conference on Communications
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 IEEE International Conference on Communications, ICC 2022
Y2 - 16 May 2022 through 20 May 2022
ER -