Power optimization in hybrid Visible Light Communication for indoor applications


Tan, Ching Han and Choong, Florence Chiao Mei and Teo, Yow Chuan and Lin, Yandan and Ho, Kai Choy (2016) Power optimization in hybrid Visible Light Communication for indoor applications. In: Progress in Electromagnetic Research Symposium (PIERS), 8-11 August 2016, Shanghai, China.

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High efficiency LEDs are widely used to replace fluorescent lamps due to outstanding energy efficiency, long operational life and affordable manufacturing cost. LED contains dual fundamental applications, which are lighting illumination and Visible Light Communication (VLC). Although VLC provides several advantages when compared with RF wireless communication, duplex communication of VLC can be problematic. Hybrid visible light communication (HVLC) is proposed to solve the limitation of VLC and fulfil mobile internet requirement which integrates VLC for downlink and Wi-Fi for uplink. Visual effect based on interior design criteria is taken into account when users replace fluorescent lamp with LED. Thus, the project investigates the optimal condition between the lighting requirement and data connectivity. Two case studies are chosen to demonstrate our proposed optimization scheme namely school hall design (square topology) and hotel design (ring topology). A linear optimization scheme is proposed for received power among the mobile users in school hall (square topology) and hotel lobby (ring topology). This technique is addressed for a practical room scenario of dimension 30m × 30m × 3m where 90 users are randomly generated with different positions. Light sources placement also affected the performance of VLC. Based on our simulation, square topology have higher signal-to-noise ratio (SNR) if compared to ring topology.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Topology, Light sources, Light emitting diodes,Optimization, Lighting, Mobile communication, Signal to noise ratio
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Suzilawati Abu Samah
Date Deposited: 12 Dec 2017 15:51
Last Modified: 12 Dec 2017 15:51
URII: http://shdl.mmu.edu.my/id/eprint/6613


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