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Optical Engineering

Effect of optimal Lambertian order for cellular indoor optical wireless communication and positioning systems
Author(s): Dehao Wu; Zabih Ghassemlooy; Wen-De Zhong; Mohammad-Ali Khalighi; Hoa Le Minh; Chen Chen; Stanislav Zvanovec; Anthony C. Boucouvalas
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Paper Abstract

We propose and analyze an optimized Lambertian order (OLO) of light-emitting diode for both indoor cellular optical wireless communication and positioning systems. We carry out analysis for the system consisting of a Lambertian source and a tilted optical receiver, and develop an expression for OLO for four-, six-, and nine-cell configurations. We investigate the channel characteristics including the optical path loss, impulse response, transmission bandwidth, and positioning accuracy for the proposed systems with and without OLO, showing that there is a significant improvement in the transmission bandwidth as well as the positioning accuracy when employing OLO. For example, for a four-cell configuration with the optimum Lambertian order, 99% of cumulative distribution function of the estimation errors is within the Cramer–Rao bound (CRB) accuracy of 6.7 to 26.7 cm, compared to the CRB accuracy of 12.8 to 29.7 cm for the Lambertian order of m=1.

Paper Details

Date Published: 22 June 2016
PDF: 8 pages
Opt. Eng. 55(6) 066114 doi: 10.1117/1.OE.55.6.066114
Published in: Optical Engineering Volume 55, Issue 6
Show Author Affiliations
Dehao Wu, Nanyang Technological Univ. (Singapore)
Northumbria Univ. (United Kingdom)
Zabih Ghassemlooy, Northumbria Univ. (United Kingdom)
Wen-De Zhong, Nanyang Technological Univ. (Singapore)
Mohammad-Ali Khalighi, Institut Fresnel (France)
Hoa Le Minh, Northumbria Univ. (United Kingdom)
Chen Chen, Nanyang Technological Univ. (Singapore)
Stanislav Zvanovec, Czech Technical Univ. in Prague (Czech Republic)
Anthony C. Boucouvalas, Northumbria Univ. (United Kingdom)
Univ. of Peloponnese (Greece)


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