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Lyapunov Optimization-Based Online Positioning in UAV-Assisted Emergency Communicationsoa mark
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Publication Year
2023-01-01
Journal
IEEE Access
Publisher
Institute of Electrical and Electronics Engineers Inc.
Citation
IEEE Access, Vol.11, pp.60835-60843
Keyword
indoor-to-outdoor path loss modelLyapunov optimizationonline UAV positioningUAV-assisted emergency communicationsUnmanned aerial vehicle
Mesh Keyword
Aerial vehicleEmergency communicationIndoor-to-outdoorIndoor-to-outdoor path loss modelLyapunov optimizationOnline unmanned aerial vehicle positioningOptimisationsPath loss modelsPropagation lossUnmanned aerial vehicleUnmanned aerial vehicle-assisted emergency communicationVehicle positioning
All Science Classification Codes (ASJC)
Computer Science (all)Materials Science (all)Engineering (all)
Abstract
In disasters, unmanned aerial vehicles (UAVs) can be used as aerial base stations (BSs) when terrestrial BSs are unavailable. Although most studies have focused on optimal UAV localization to provide efficient network connectivity for outdoor users, supporting indoor users is also of great importance. Additionally, fairly providing network connectivity to as many indoor users as possible is critical in emergencies. Therefore, we propose a table-based fair transmission algorithm based on carrier-sense multiple access with collision avoidance (CSMA/CA) that aims to provide as many equal opportunities as possible. Moreover, we propose a Lyapunov optimization-based optimal UAV positioning algorithm to satisfy various disaster requirements. To analyze the proposed algorithm's performance, two building types were considered: standard- and factory-type buildings. We then compared the proposed table-based fair transmission algorithm with the conventional protocol according to various building types. Furthermore, via intensive simulations, we demonstrated the Lyapunov optimization-derived UAV movements according to situational requirement variations.
ISSN
2169-3536
Language
eng
URI
https://aurora.ajou.ac.kr/handle/2018.oak/33480
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85162652814&origin=inward
DOI
https://doi.org/10.1109/access.2023.3286038
Journal URL
http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639
Type
Article
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Lee, Howon이호원
Department of Electrical and Computer Engineering
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