Age of Information in Slotted ALOHA With Energy Harvesting
Paper in proceeding, 2023

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.

Author

Khac-Hoang Ngo

Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks

Giuseppe Durisi

Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks

Alexandre Graell I Amat

Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks

Andrea Munari

German Aerospace Center (DLR)

Francisco Lázaro

German Aerospace Center (DLR)

Proceedings - IEEE Global Communications Conference, GLOBECOM

23340983 (ISSN) 25766813 (eISSN)

3579-3584
9798350310900 (ISBN)

2023 IEEE Global Communications Conference, GLOBECOM 2023
Kuala Lumpur, Malaysia,

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Swedish Research Council (VR) (2021-04970), 2022-01-01 -- 2025-12-31.

Low-latency and private edge computing in random-access networks

European Commission (EC) (EC/H2020/101022113), 2021-10-01 -- 2023-09-30.

Areas of Advance

Information and Communication Technology

Subject Categories

Telecommunications

Communication Systems

DOI

10.1109/GLOBECOM54140.2023.10437622

More information

Latest update

3/22/2024