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dc.contributor.authorCai, Wenqi
dc.contributor.authorAlhashim, Abdullah N.
dc.contributor.authorNdoye, Ibrahima
dc.contributor.authorLaleg-Kirati, Taous-Meriem
dc.date.accessioned2021-05-31T07:40:19Z
dc.date.available2021-05-31T07:40:19Z
dc.date.issued2020
dc.identifier.citationCai, W., Alhashim, A. N., N’Doye, I., & Laleg-Kirati, T. M. (2020). An Extremum Seeking Control Based Approach for Alignment Problem of Mobile Optical Communication Systems. IFAC-PapersOnLine, 53(2), 5368–5374. doi:10.1016/j.ifacol.2020.12.1519
dc.identifier.issn2405-8963
dc.identifier.doi10.1016/j.ifacol.2020.12.1519
dc.identifier.urihttp://hdl.handle.net/10754/669306
dc.description.abstractOptical wireless communication (OWC) has proliferated a wide range of applications in many fields due to its advantages of low-cost, high bandwidth, etc. However, the strict alignment requirements of widely used line-of-sight (LOS) deployments are challenging to be achieved, especially for those moving optical communication systems. In this paper, we propose an extremum seeking control based control strategy to solve the alignment problem for mobile optical communication systems. Our proposed approach consists of two steps: coarse alignment and fine alignment, both rely on the measurements from the vision sensor Pixy2. The coarse alignment uses a feedback proportional-derivative (PD) control and is responsible for tracking and following the receiver. The objective of the fine alignment is to get rid of the effects of any static or dynamic disturbances. The perturbation-based extremum seeking control (ESC) is adopted for a continuous search for the optimal position, where the received optical power is maximum in the presence of disturbance. The proposed approach is simple, effective, and easy to implement.
dc.description.sponsorshipThis work has been supported by the King Abdullah University of Science and Technology (KAUST) Base Research Fund (BAS/1/1627-01-01) to Taous Meriem Laleg.
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S2405896320321145
dc.rightsThis is an open access article under the CC BY-NC-ND license. Peer review under responsibility of International Federation of Automatic Control.
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectMobile optical communication systems
dc.subjectbeam alignment
dc.subjectextremum seeking control
dc.subjecttracking error
dc.subjectfollowing error
dc.subjectPD
dc.subjectvision sensor
dc.titleAn extremum seeking control based approach for alignment problem of mobile optical communication systems
dc.typeConference Paper
dc.contributor.departmentKing Abdullah University of Science and Technology (KAUST),Thuwal 23955-6900, Saudi Arabia
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentComputational Bioscience Research Center (CBRC)
dc.conference.date2020-07-12 to 2020-07-17
dc.conference.name21st IFAC World Congress 2020
dc.conference.locationBerlin, DEU
dc.eprint.versionPublisher's Version/PDF
dc.identifier.volume53
dc.identifier.issue2
dc.identifier.pages5368-5374
kaust.personCai, Wenqi
kaust.personAlhashim, Abdullah N.
kaust.personNdoye, Ibrahima
kaust.personLaleg-Kirati, Taous-Meriem
kaust.grant.numberBAS/1/1627-01-01
dc.identifier.eid2-s2.0-85105028676
refterms.dateFOA2021-05-31T07:40:45Z
kaust.acknowledged.supportUnitBAS
kaust.acknowledged.supportUnitBase Research Fund


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This is an open access article under the CC BY-NC-ND license. Peer review under responsibility of International Federation of Automatic Control.
Except where otherwise noted, this item's license is described as This is an open access article under the CC BY-NC-ND license. Peer review under responsibility of International Federation of Automatic Control.