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Vehicular Li-Fi performance across diverse geographical regions employing spatial multiplexing

AANCHAL SHARMA1,* , SANMUKH KAUR1

Affiliation

  1. Amity School of Engineering and Technology, Amity University Uttar Pradesh, Noida, 201203, India

Abstract

This paper presents a novel vehicular light fidelity (Li-Fi) based multiple-input-multiple-output (MIMO) free space optical (FSO) communication system, addressing the impact of rain across diverse geographical regions (China, USA, Japan, India) identified based on road accident rates. Real-time rain data analysis enables the prediction of quality of received signal in terms of signal-to-noise ratio (SNR), path loss, and throughput with respect to vehicle speed and distance between vehicles by employing quadrature phase shift keying (QPSK) modulation. The study reveals that 8×8 MIMO configuration outperforms other MIMO systems in terms of superior signal strength, reduced path loss and lower SNR value under adverse rain weather conditions..

Keywords

Vehicular Li-Fi, MIMO, FSO, QPSK, SNR.

Submitted at: July 25, 2024
Accepted at: Feb. 3, 2025

Citation

AANCHAL SHARMA, SANMUKH KAUR, Vehicular Li-Fi performance across diverse geographical regions employing spatial multiplexing, Journal of Optoelectronics and Advanced Materials Vol. 27, Iss. 1-2, pp. 49-54 (2025)