Data Freshness in Mixed-Memory Intermittently-Powered Systems

James Scott Broadhead; Przemysław Pawełczak

doi:10.1109/ISIT45174.2021.9518156

Data Freshness in Mixed-Memory Intermittently-Powered Systems

James Scott Broadhead, Przemysław Pawełczak

Embedded Systems

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

1 Citation (Scopus)

Abstract

Age of Information (AoI) is a key metric to understand data freshness in Internet of Things (IoT) devices. In this paper we analyse an intermittently—powered IoT sensor-with mixed-memory (volatile and non-volatile) architecture—that uses a Time-Dependent Checkpointing (TDC) scheme. We derive the average Peak Age of Information (PAoI) and average AoI of the system, and use these metrics to understand which device parameters most significantly influence performance. We go on to consider how the average PAoI of a mixed-memory system compares with entirely volatile or entirely non-volatile architecture, and also introduce an alternative TDC strategy to improve system resilience in unpredictable environmental conditions.

Original language	English
Title of host publication	2021 IEEE International Symposium on Information Theory, ISIT 2021 - Proceedings
Subtitle of host publication	Proceedings
Place of Publication	Piscataway
Publisher	IEEE
Pages	3361-3366
Number of pages	6
ISBN (Electronic)	978-1-5386-8209-8
ISBN (Print)	978-1-5386-8210-4
DOIs	https://doi.org/10.1109/ISIT45174.2021.9518156
Publication status	Published - 2021
Event	2021 IEEE International Symposium on Information Theory (ISIT) - Virtual at Melbourne, Australia Duration: 12 Jul 2021 → 20 Jul 2021

Publication series

Name	IEEE International Symposium on Information Theory - Proceedings
Volume	2021-July
ISSN (Print)	2157-8095

Conference

Conference	2021 IEEE International Symposium on Information Theory (ISIT)
Abbreviated title	ISIT 2021
Country/Territory	Australia
City	Virtual at Melbourne
Period	12/07/21 → 20/07/21

Access to Document

10.1109/ISIT45174.2021.9518156

Cite this

Broadhead, J. S., & Pawełczak, P. (2021). Data Freshness in Mixed-Memory Intermittently-Powered Systems. In 2021 IEEE International Symposium on Information Theory, ISIT 2021 - Proceedings: Proceedings (pp. 3361-3366). Article 9518156 (IEEE International Symposium on Information Theory - Proceedings; Vol. 2021-July). IEEE. https://doi.org/10.1109/ISIT45174.2021.9518156

@inproceedings{f979480f419a478683ac66c5e0d9f950,

title = "Data Freshness in Mixed-Memory Intermittently-Powered Systems",

abstract = "Age of Information (AoI) is a key metric to understand data freshness in Internet of Things (IoT) devices. In this paper we analyse an intermittently—powered IoT sensor-with mixed-memory (volatile and non-volatile) architecture—that uses a Time-Dependent Checkpointing (TDC) scheme. We derive the average Peak Age of Information (PAoI) and average AoI of the system, and use these metrics to understand which device parameters most significantly influence performance. We go on to consider how the average PAoI of a mixed-memory system compares with entirely volatile or entirely non-volatile architecture, and also introduce an alternative TDC strategy to improve system resilience in unpredictable environmental conditions.",

author = "Broadhead, {James Scott} and Przemys{\l}aw Pawe{\l}czak",

year = "2021",

doi = "10.1109/ISIT45174.2021.9518156",

language = "English",

isbn = "978-1-5386-8210-4",

series = "IEEE International Symposium on Information Theory - Proceedings",

publisher = "IEEE",

pages = "3361--3366",

booktitle = "2021 IEEE International Symposium on Information Theory, ISIT 2021 - Proceedings",

address = "United States",

note = "2021 IEEE International Symposium on Information Theory (ISIT), ISIT 2021 ; Conference date: 12-07-2021 Through 20-07-2021",

}

Broadhead, JS & Pawełczak, P 2021, Data Freshness in Mixed-Memory Intermittently-Powered Systems. in 2021 IEEE International Symposium on Information Theory, ISIT 2021 - Proceedings: Proceedings., 9518156, IEEE International Symposium on Information Theory - Proceedings, vol. 2021-July, IEEE, Piscataway, pp. 3361-3366, 2021 IEEE International Symposium on Information Theory (ISIT), Virtual at Melbourne, Australia, 12/07/21. https://doi.org/10.1109/ISIT45174.2021.9518156

Data Freshness in Mixed-Memory Intermittently-Powered Systems. / Broadhead, James Scott ; Pawełczak, Przemysław.
2021 IEEE International Symposium on Information Theory, ISIT 2021 - Proceedings: Proceedings. Piscataway: IEEE, 2021. p. 3361-3366 9518156 (IEEE International Symposium on Information Theory - Proceedings; Vol. 2021-July).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Data Freshness in Mixed-Memory Intermittently-Powered Systems

AU - Broadhead, James Scott

AU - Pawełczak, Przemysław

PY - 2021

Y1 - 2021

N2 - Age of Information (AoI) is a key metric to understand data freshness in Internet of Things (IoT) devices. In this paper we analyse an intermittently—powered IoT sensor-with mixed-memory (volatile and non-volatile) architecture—that uses a Time-Dependent Checkpointing (TDC) scheme. We derive the average Peak Age of Information (PAoI) and average AoI of the system, and use these metrics to understand which device parameters most significantly influence performance. We go on to consider how the average PAoI of a mixed-memory system compares with entirely volatile or entirely non-volatile architecture, and also introduce an alternative TDC strategy to improve system resilience in unpredictable environmental conditions.

AB - Age of Information (AoI) is a key metric to understand data freshness in Internet of Things (IoT) devices. In this paper we analyse an intermittently—powered IoT sensor-with mixed-memory (volatile and non-volatile) architecture—that uses a Time-Dependent Checkpointing (TDC) scheme. We derive the average Peak Age of Information (PAoI) and average AoI of the system, and use these metrics to understand which device parameters most significantly influence performance. We go on to consider how the average PAoI of a mixed-memory system compares with entirely volatile or entirely non-volatile architecture, and also introduce an alternative TDC strategy to improve system resilience in unpredictable environmental conditions.

UR - http://www.scopus.com/inward/record.url?scp=85115115105&partnerID=8YFLogxK

U2 - 10.1109/ISIT45174.2021.9518156

DO - 10.1109/ISIT45174.2021.9518156

M3 - Conference contribution

SN - 978-1-5386-8210-4

T3 - IEEE International Symposium on Information Theory - Proceedings

SP - 3361

EP - 3366

BT - 2021 IEEE International Symposium on Information Theory, ISIT 2021 - Proceedings

PB - IEEE

CY - Piscataway

T2 - 2021 IEEE International Symposium on Information Theory (ISIT)

Y2 - 12 July 2021 through 20 July 2021

ER -

Data Freshness in Mixed-Memory Intermittently-Powered Systems

Abstract

Publication series

Conference

Access to Document

Other files and links

Fingerprint

Cite this