Design and Implementation of Mobility Management for Indoor Beam-Steered Infrared Light Communication System

This work describes a beam-steered infrared light communication (BS-ILC) system that facilitates non-shared and ultra-high data rate communications to individual user devices. The BS-ILC system comprises optical antennas, vision-based user localization, and optical receivers (each having a wide fiel...

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Bibliographic Details
Published in:Journal of lightwave technology 2021-12, Vol.39 (24), p.7930-7939
Main Authors: Pham, Ngoc Quan, Mekonnen, Ketemaw Addis, Mefleh, Ali, Koonen, Ton, Tangdiongga, Eduward
Format: Article
Language:English
Subjects:
Communications systems
Device localization
Electronic devices
Field of view
Gaussian beams (optics)
Handover
Infrared radiation
Laser beams
Location awareness
Mobility management
optical beam steering
Optical beams
Optical communication
Optical fiber communication
Optical fiber networks
Optical fibers
Optical receivers
optical wireless communication
Robustness (mathematics)
Signal strength
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Summary:This work describes a beam-steered infrared light communication (BS-ILC) system that facilitates non-shared and ultra-high data rate communications to individual user devices. The BS-ILC system comprises optical antennas, vision-based user localization, and optical receivers (each having a wide field-of-view photodetector and an IR-LED tag). Because of deploying narrow optical beams, the BS-ILC system requires efficient mobility management to support mobile user devices. This study develops a new BS-ILC model based on the Gaussian beam propagation that precisely estimates the user device's received signal strength from its localized position. Then, we propose mobility management consisting of two main components as location management and handover management. We further analyze the handover rate and the ping-pong effect to design the most efficient and robust handover mechanisms. Numerical and experimental results illustrate that the proposed mobility management can realize the seamless transmission, enabling >10 Gbit/s link per user.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2021.3124089