Effect of Signal-Dependent Shot Noise on Visible Light Positioning

Ahmad Cheema; Malek Alsmadi; Salama Ikki

doi:10.1109/JPHOT.2022.3170693

IEEE Photonics Journal (Jan 2022)

Effect of Signal-Dependent Shot Noise on Visible Light Positioning

Ahmad Cheema,
Malek Alsmadi,
Salama Ikki

Affiliations

Ahmad Cheema: ORCiD; Department of Electrical Engineering, Lakehead University, Thunder Bay, ON, Canada
Malek Alsmadi: ORCiD; Department of Electrical Engineering, Lakehead University, Thunder Bay, ON, Canada
Salama Ikki: ORCiD; Department of Electrical Engineering, Lakehead University, Thunder Bay, ON, Canada

DOI: https://doi.org/10.1109/JPHOT.2022.3170693
Journal volume & issue: Vol. 14, no. 3
pp. 1 – 7

Abstract

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This paper investigates the error bounds for position estimation in downlink visible light communication (VLC) systems. More precisely, we use Cramér-Rao lower bounds (CRLBs) to study the effect of signal-dependent shot noise (SDSN) on the error performance in visible light positioning. We consider synchronous, quasi-synchronous, and asynchronous visible light positioning (VLP) systems. The system performance is assessed based on the position estimation, and uses information from parameters relating to the time of arrival (TOA), time difference of arrival (TDOA), and received signal strength (RSS). The results demonstrate that SDSN has a negative impact on the error bounds in all considered scenarios. Moreover, the level of degradation observed is not uniform among all cases at higher SDSN levels.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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