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dc.contributor.authorWeng, Yang
dc.contributor.authorGuo, Yujian
dc.contributor.authorAlkhazragi, Omar
dc.contributor.authorNg, Tien Khee
dc.contributor.authorGUO, Jenhwa
dc.contributor.authorOoi, Boon S.
dc.date.accessioned2019-07-18T07:32:42Z
dc.date.available2019-07-18T07:32:42Z
dc.date.issued2019
dc.identifier.doi10.1109/JLT.2019.2928465
dc.identifier.urihttp://hdl.handle.net/10754/656072
dc.description.abstractThe use of autonomous underwater vehicles (AUVs) is highly desirable for collecting data from seafloor sensor platforms within a close range. With the recent innovations in underwater wireless optical communication (UWOC) for deep-sea exploration, UWOC could be used in conjunction with AUVs for high-speed data uploads near the surface. In addition to absorption and scattering effects, UWOC undergoes scintillation induced by temperature- and salinity-related turbulence. However, studies on scintillation have been limited to emulating channels with uniform temperature and salinity gradients, rather than incorporating the effects of turbulent motion. Such turbulent flow results in an ocean mixing process that degrades optical communication. This study presents a turbulent model for investigating the impact of vehicle-motion-induced turbulence via the turbulent kinetic energy dissipation rate. This scintillation-related parameter offers a representation of the change in the refractive index (RI) due to the turbulent flow and ocean mixing. Monte Carlo simulations are carried out to validate the impact of turbulent flow on optical scintillation. In experimental measurements, the scintillation index (SI) and signal-to-noise ratio (SNR) are similar with (SI = 0.4824, SNR = 5.56) and without (SI = 0.4823, SNR = 5.87) water mixing under uniform temperature channels. By introducing a temperature gradient of 4 °C, SI (SNR) with and without turbulent flow changed to 0.5417 (5.06) and 0.8790 (3.40), respectively. The experimental results show a similar trend with the simulation results. Thus, turbulent flow was shown to significantly impact underwater optical communications.
dc.description.sponsorshipThis work was supported by the King Abdullah University of Science and Technology (KAUST) baseline funding, BAS/1/1614-01-01; KAUST equipment funding, KCR/1/2081-01-01; GEN/1/6607-01-01; KAUST-KFUPM Special Initiative (KKI) Program, REP/1/2878-01-01.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.relation.urlhttps://ieeexplore.ieee.org/document/8762137/
dc.relation.urlhttps://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8762137
dc.rights(c) 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
dc.subjectautonomous underwater vehicles
dc.subjectunderwater optical communication
dc.subjectocean mixing
dc.subjectscintillation
dc.titleImpact of Turbulent-Flow-Induced Scintillation on Deep-Ocean Wireless Optical Communication
dc.typeArticle
dc.contributor.departmentCEMSE, KAUST, 127355 Thuwal, Jeddah Saudi Arabia
dc.contributor.departmentCEMSE, King Abdullah University of Science and Technology, 127355 Thuwal, Jeddah Saudi Arabia 23955-6900
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering
dc.contributor.departmentElectrical Engineering Program
dc.identifier.journalJournal of Lightwave Technology
dc.eprint.versionPost-print
dc.contributor.institutionDepartment of Engineering Science and Ocean Engineering, National Taiwan University, 33561 Taipei, Taiwan Taiwan
kaust.personWeng, Yang
kaust.personGuo, Yujian
kaust.personAlkhazragi, Omar
kaust.personNg, Tien Khee
kaust.personOoi, Boon S.
kaust.grant.numberBAS/1/1614-01-01
kaust.grant.numberKCR/1/2081-01-01
kaust.grant.numberGEN/1/6607-01-01
kaust.grant.numberREP/1/2878-01-01
refterms.dateFOA2019-07-18T07:33:39Z


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