A1 Journal article (refereed)
Age of Information Based URLLC-enabled UAV Wireless Communications System (2022)

Basnayaka, C. M. W., Jayakody, D. N., & Chang, Z. (2022). Age of Information Based URLLC-enabled UAV Wireless Communications System. IEEE Internet of Things Journal, 9(12), 10212-10223. https://doi.org/10.1109/JIOT.2021.3123431

JYU authors or editors

Publication details

All authors or editors: Basnayaka, Chathuranga M. Wijerathna; Jayakody, Dushantha Nalin, K.; Chang, Zheng

Journal or series: IEEE Internet of Things Journal

ISSN: 2372-2541

eISSN: 2327-4662

Publication year: 2022

Volume: 9

Issue number: 12

Pages range: 10212-10223

Publisher: Institute of Electrical and Electronics Engineers (IEEE)

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1109/JIOT.2021.3123431

Publication open access: Not open

Publication channel open access:

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/78875

Abstract

This paper considers an unmanned aerial vehicles (UAV) communication network, where UAV operate as an aerial mobile relay between a source and a destination of the network. To capture the “timelines” of the received information at the destination node, a new performance metric named age of information (AoI) is considered. In addition, a short packet communication scheme maintains low latency in the proposed UAV wireless communication system. The finite block-length theory investigates the performances of short packet communications scheme in the UAV-assisted wireless communications system. In this paper, the Average Age of Information (AAoI) is estimated by applying the Stochastic Hybrid Systems (SHS) model. The SHS model comprises discrete states represents events that reset the AoI process and continuously dynamics that represent linearly growing age processes. Finally, a closed-form expression for the AAoI of the proposed UAV wireless communication system is derived and it can be used to estimate the optimal altitude, block length and other parameters.

Keywords: data communications networks; unmanned aerial vehicles

Free keywords: age of information (AoI); finite block length regime; UAV communication; ultra-reliable and low-latency communications (URLLC); stochastic hybrid systems (SHS)

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Ministry reporting: Yes

Reporting Year: 2022

JUFO rating: 2