Evaluation of illumination and received power for realistic LED layout for indoor VLC

The Radio Frequency (RF) spectrum is reducing at an accelerated rate due to inflated demands of data necessitating applications. Visible Light Communication (VLC) is a wireless Personal Area Network (PAN) technology based on Light Emitting Diodes (LEDs) and operates in the license-free frequency band range of400 THz to 800 THz regulated by IEEE 802.15.7. The central idea of VLC is to consolidate communication with illumination. The paramount advantages of VLC encompass-a broad license-free spectrum, no interference with RF signals, distinct data broadcasting zones, satisfies eye and skin safety regulations and energy-efficient technology as it uses LEDs. The two-fold objective of this work is to evaluate the impact of variation of distance on the number of LEDs required to attain an illuminance of $\sim$300 lux for a novel and realistic LED layout configuration and received power. The application software tool is MATLABO and the analysis tool is Microsoft ExcelOR. The investigation is performed using LEDs of varied luminous intensities in the range of 1000 mcd to 10,000 mcd from heterogeneous vendors and successfully models their trendline equations. The received power is evaluated experimentally using VLHW5100 LEDs. This paper has made an attempt to cite recent, relevant and experimentally implemented papers wherever cited.