Li-Wi: An upper layer hybrid VLC-WiFi network handover solution

Visible light communications (VLC) as a wireless communication technology complementing the radio frequency-based wireless fidelity (WiFi). The hybrid VLC/WiFi, offers the best of both worlds, which are of particular interested in vehicular VLC (V-VLC) that have not yet been explored yet. In this pa...

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Bibliographic Details
Published in:Ad hoc networks 2022-01, Vol.124, p.102705, Article 102705
Main Authors: Alizadeh Jarchlo, Elnaz, Eso, Elizabeth, Doroud, Hossein, Siessegger, Bernhard, Ghassemlooy, Zabih, Caire, Giuseppe, Dressler, Falko
Format: Article
Language:English
Subjects:
Data link layer
Frequency diversity
Horizontal handover
Link aggregation
MPTCP
Outage duration
Transport layer
Vertical handover
Visible light communication
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Summary:Visible light communications (VLC) as a wireless communication technology complementing the radio frequency-based wireless fidelity (WiFi). The hybrid VLC/WiFi, offers the best of both worlds, which are of particular interested in vehicular VLC (V-VLC) that have not yet been explored yet. In this paper, we propose an upper layer hybrid VLC-WiFi network handover solution known as “Li-Wi” to address the handover issues in V-VLC due to the mobility, shadowing, and obstacles. Li-Wi utilizes the benefits of high data rates and link availability of VLC and WiFi, respectively. It offers robust connectivity with lower handover outage duration (Thod) and a high network throughput. Based on experimental evaluation results using a small-scale prototype, we demonstrate the advantage of the proposed approach. Our experiments reveal that, in an indoor vehicular network Li-Wi is highly efficient in minimizing (Thod) to 0.03 and 0.06 s for horizontal and vertical handovers, respectively.
ISSN:1570-8705
1570-8713
DOI:10.1016/j.adhoc.2021.102705