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KAREEM A. BADAWI1,2, NAZMI A. MOHAMMED3,4,5, MOUSTAFA H. ALY6,*
- Electronics and Communication Engineering Department, Electronics and Communication Engineering Department, Higher Technological Institute, 10th of Ramadan, Cairo, Egypt
- Electronics and Communication Engineering Department, College of Engineering and Technology, Arab Academy for Science, Technology and Maritime Transport, Cairo, Egypt
- Research center, New Cairo Academy for Science and Arts, New Cairo, Egypt
- Faculty of Engineering, The Egyptian Chinese University, Cairo, Egypt
- Photonic Research Lab, October 6 University, 6th of October city, Egypt
- Electronics and Communication Engineering Department, College of Engineering and Technology, Arab Academy for Science, Technology and Maritime Transport, Alexandria, Egypt, Member of OSA
This paper introduces an optimization parametric study for a sub-carrier pulse position modulation (SC-LPPM) based line of sight-visible light communication (LOS-VLC) indoor system. The optimization process targets achieving optimum possible communication and illumination performance. The obtained results show that, to satisfy enough illumination level (≥ 300 Lux) the operating bit rate should be ≤ 3 Mbps. Increasing the subcarrier modulation factor (SCMF) in the range 0 to 40% at 3 Mbps provides a remarkable BER (up to 10-6) and a reasonable illumination performance (~400 Lux) with an acceptable increase in the total required system lighting power. Increasing the modulation level (L) enhances the BER performance at the cost of the illumination performance especially at low bit rate regions. The choice of L = 8, SCMF increases by 40% and a bit rate ≤ 3 Mbps provides a BER of 2.25410-6 and an illumination level of 420 Lux through the room and 4.5410-5, ~140 Lux respectively, when moving towards the room corners. The work is extended to study the effects of: 1) different modulation levels and SCMF, 2) distance between transmitter and receiver, and 3) transmitter semi-radiation angle and SCMF on system performance and power requirements..
Visible Light Communication (VLC), Sub-Carrier Pulse Position Modulation (SC-LPPM), Illumination, Light-Emitting Diode (LED), Bit Error Rate (BER), Optical Power.
Submitted at: Feb. 27, 2017
Accepted at: June 7, 2018
KAREEM A. BADAWI, NAZMI A. MOHAMMED, MOUSTAFA H. ALY, Exploring BER performance of a SC-LPPM based LOSVLC system with distinctive lighting, Journal of Optoelectronics and Advanced Materials Vol. 20, Iss. 5-6, pp. 290-301 (2018)
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