Multi-branch Transmitter for Indoor Visible Light Communication Systems
Safwan Hafeedh Younus, Aubida A. Al-Hameed, and Jaafar M. H., Elmirghani

TL;DR
This paper investigates a multi-branch transmitter (MBT) to enhance data rates in indoor visible light communication systems, considering various receiver types, multiplexing techniques, and mobility effects for single and multiuser scenarios.
Contribution
It introduces the use of a multi-branch transmitter with subcarrier and wavelength division multiplexing for improved data rates in indoor VLC systems, accounting for mobility and interference.
Findings
MBT improves data rates in single and multiuser VLC systems.
WDM and SCM techniques enhance throughput and user allocation.
Mobility and interference effects are significant factors in system performance.
Abstract
One of the main aims of indoor visible light communication (VLC) systems is to deliver a high data rate service in single user and in multiuser scenarios. A key obstacle is the ability of the indoor VLC channel to support high data rates in the scenarios of interest. Here, we assess the potential of a multi-branch transmitter (MBT) and its use to achieve higher data rates in single user and multiuser indoor VLC systems. For the single user VLC system, the performance of the MBT is examined with a wide field of view (W-FOV) receiver and an angle diversity receiver (ADR) while for the multiuser VLC system we evaluate the performance of the MBT with a non-imaging angle diversity receiver (NI-ADR). In addition, for the multiuser VLC system, we propose subcarrier multiplexing (SCM) tones to allocate an optimum transmitter to each user. Furthermore, wavelength division multiplexing (WDM) is…
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