Age of Information in Slotted ALOHA With Energy Harvesting

We examine the age of information (AoI) of a status update system that incorporates energy harvesting and uses the slotted ALOHA protocol. We derive analytically the average AoI and the probability that the AoI exceeds a given threshold. Via numerical results, we investigate two strategies to minimi...

Full description

Saved in:
Bibliographic Details
Published inEnergieffektiv massiv random access för distribuerade autonoma system i realtid pp. 3579 - 3584
Main Authors Ngo, Khac-Hoang, Durisi, Giuseppe, Amat, Alexandre Graelli, Munari, Andrea, Lazaro, Francisco
Format Conference Proceeding
LanguageEnglish
Published IEEE 04.12.2023
Subjects
Decoding
Energy harvesting
Information age
Measurement
Propagation losses
Protocols
Throughput
Online AccessGet full text

Cover

More Information
Summary:We examine the age of information (AoI) of a status update system that incorporates energy harvesting and uses the slotted ALOHA protocol. We derive analytically the average AoI and the probability that the AoI exceeds a given threshold. Via numerical results, we investigate two strategies to minimize the age of information (AoI): transmitting a new update whenever possible to exploit every chance to reduce the AoI, and transmitting only when sufficient energy is available to increase the chance of successful delivery. The two strategies are beneficial for low and high update generation rates, respectively. However, an optimized approach that balances the two strategies outperforms them significantly in terms of both AoI and throughput.
ISSN:2576-6813
2334-0983
2576-6813
DOI:10.1109/GLOBECOM54140.2023.10437622