Optimal pulse design for visible light positioning systems

buir.contributor.authorYazar, Onurcan
buir.contributor.authorGezici, Sinan
buir.contributor.orcidYazar, Onurcan|0000-0002-5128-8433
buir.contributor.orcidGezici, Sinan|0000-0002-6369-3081
dc.citation.epage108334- 12en_US
dc.citation.spage108334- 1en_US
dc.citation.volumeNumber191en_US
dc.contributor.authorYazar, Onurcan
dc.contributor.authorGezici, Sinan
dc.date.accessioned2023-02-16T06:49:07Z
dc.date.available2023-02-16T06:49:07Z
dc.date.issued2021-10-16
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractThe problem of optimal pulse design for light-emitting diode (LED) transmitters is investigated in an indoor visible light positioning (VLP) setup. In particular, the problem of localization performance maximization is formulated for both asynchronous and synchronous VLP systems with consideration of practical limitations related to power consumption, illumination levels, and/or effective bandwidths, while quantifying the localization accuracy via the Cramér–Rao lower bound (CRLB). In both asynchronous and synchronous scenarios, the formulated problems are shown to be convex optimization problems, and some properties of the optimal solutions are derived. In addition, the pulse design problem for minimum power consumption is formulated under a CRLB constraint along with other practical limitations; and this problem is also revealed to be a convex optimization problem. Based on the solutions of the proposed optimization problems, pulse design procedures are described to determine the parameters of optimal pulse shapes. Numerical results illustrate the benefits of the proposed optimal pulse design approach in comparison with the state-of-the-art optimal power allocation scheme in the literature. In particular, electrical power consumption can be reduced by around 45% or localization accuracy can be improved by as much as 25% via the proposed optimal pulse design approach in certain scenarios.en_US
dc.embargo.release2023-10-16
dc.identifier.doi10.1016/j.sigpro.2021.108334en_US
dc.identifier.eissn1872-7557
dc.identifier.issn0165-1684
dc.identifier.urihttp://hdl.handle.net/11693/111387
dc.language.isoEnglishen_US
dc.publisherElsevier BVen_US
dc.relation.isversionofhttps://doi.org/10.1016/j.sigpro.2021.108334en_US
dc.source.titleSignal Processingen_US
dc.subjectVisible light positioningen_US
dc.subjectPower efficiencyen_US
dc.subjectCramér–Rao lower bounden_US
dc.subjectPulse designen_US
dc.subjectConvex optimizationen_US
dc.titleOptimal pulse design for visible light positioning systemsen_US
dc.typeArticleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Optimal_pulse_design_for_visible_light_positioning_systems.pdf
Size:
1.55 MB
Format:
Adobe Portable Document Format
Description:
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.69 KB
Format:
Item-specific license agreed upon to submission
Description: