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Publication type: Article in scientific journal
Type of review: Peer review (publication)
Title: Prioritization based task offloading in UAV-assisted edge networks
Authors: Kalinagac, Onur
Gür, Gürkan
Alagöz, Fatih
et. al: No
DOI: 10.3390/s23052375
Published in: Sensors
Volume(Issue): 23
Issue: 5
Page(s): 2375
Issue Date: 2023
Publisher / Ed. Institution: MDPI
ISSN: 1424-8220
Language: English
Subjects: UAV network; Edge computing; Task offloading; Vehicular communication; SDN; Emergency computing
Subject (DDC): 629: Aeronautical, automotive engineering
Abstract: Under demanding operational conditions such as traffic surges, coverage issues, and low latency requirements, terrestrial networks may become inadequate to provide the expected service levels to users and applications. Moreover, when natural disasters or physical calamities occur, the existing network infrastructure may collapse, leading to formidable challenges for emergency communications in the area served. In order to provide wireless connectivity as well as facilitate a capacity boost under transient high service load situations, a substitute or auxiliary fast-deployable network is needed. Unmanned Aerial Vehicle (UAV) networks are well suited for such needs thanks to their high mobility and flexibility. In this work, we consider an edge network consisting of UAVs equipped with wireless access points. These software-defined network nodes serve a latency-sensitive workload of mobile users in an edge-to-cloud continuum setting. We investigate prioritization-based task offloading to support prioritized services in this on-demand aerial network. To serve this end, we construct an offloading management optimization model to minimize the overall penalty due to priority-weighted delay against task deadlines. Since the defined assignment problem is NP-hard, we also propose three heuristic algorithms as well as a branch and bound style quasi-optimal task offloading algorithm and investigate how the system performs under different operating conditions by conducting simulation-based experiments. Moreover, we made an open-source contribution to Mininet-WiFi to have independent Wi-Fi mediums, which were compulsory for simultaneous packet transfers on different Wi-Fi mediums.
Fulltext version: Published version
License (according to publishing contract): CC BY 4.0: Attribution 4.0 International
Departement: School of Engineering
Organisational Unit: Institute of Computer Science (InIT)
Appears in collections:Publikationen School of Engineering

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Kalinagac, O., Gür, G., & Alagöz, F. (2023). Prioritization based task offloading in UAV-assisted edge networks. Sensors, 23(5), 2375.
Kalinagac, O., Gür, G. and Alagöz, F. (2023) ‘Prioritization based task offloading in UAV-assisted edge networks’, Sensors, 23(5), p. 2375. Available at:
O. Kalinagac, G. Gür, and F. Alagöz, “Prioritization based task offloading in UAV-assisted edge networks,” Sensors, vol. 23, no. 5, p. 2375, 2023, doi: 10.3390/s23052375.
KALINAGAC, Onur, Gürkan GÜR und Fatih ALAGÖZ, 2023. Prioritization based task offloading in UAV-assisted edge networks. Sensors. 2023. Bd. 23, Nr. 5, S. 2375. DOI 10.3390/s23052375
Kalinagac, Onur, Gürkan Gür, and Fatih Alagöz. 2023. “Prioritization Based Task Offloading in UAV-Assisted Edge Networks.” Sensors 23 (5): 2375.
Kalinagac, Onur, et al. “Prioritization Based Task Offloading in UAV-Assisted Edge Networks.” Sensors, vol. 23, no. 5, 2023, p. 2375,

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