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ISSN: 1023-5086


ISSN: 1023-5086

Scientific and technical

Opticheskii Zhurnal

A full-text English translation of the journal is published by Optica Publishing Group under the title “Journal of Optical Technology”

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DOI: 10.17586/1023-5086-2022-89-12-65-74

Line of sight and non line of sight vehicle to vehicle communication using Light Fidelity

For Russian citation (Opticheskii Zhurnal):

Nivedita Nair, Sanmukh Kaur, Yatin Singh Sammal, Gaurja Bahl. Line of sight and nonline of sight vehicle to vehicle communication using Light Fidelity. LOS- и NLOS-коммуникация между транспортными средствами с использованием технологии LiFi. [на англ. яз.] // Оптический журнал. 2022. Т. 89. № 12. С. 65–74.


Nivedita Nair, Sanmukh Kaur, Yatin Singh Sammal, Gaurja Bahl. Line of sight and nonline of sight vehicle to vehicle communication using Light Fidelity. LOS- и NLOS-коммуникация между транспортными средствами с использованием технологии LiFi. [in English] // Opticheskii Zhurnal. 2022. V. 89. № 12. P. 65–74.

For citation (Journal of Optical Technology):

Nivedita Nair, Sanmukh Kaur, Yatin Singh Sammal, and Gaurja Bahl, "Line-of-sight and non-line-of-sight vehicle-to-vehicle communication using light fidelity," Journal of Optical Technology. 89(12), 740-747 (2022).


Subject of study. Light Fidelity is an alluring complementary communication technology for vehicular applications such as vehicle to vehicle and navigation system. The street light communication system can be utilized for sending data like location, sign boards, traffic ahead, emergencies, speed limit etc. This can help in easy navigation and reduce traffic congestion. Method. In this paper, a hardware model for vehicle to vehicle bidirectional communication along with street light to vehicle communication has been presented. A taillight red colour light emitting diode with a headlight white colour light emitting diode was employed in the experiment to analyze the range in different situation. Main results. This paper also consists of the simulation of nonline of sight communication channel considering different atmospheric conditions. This is effective in cases where line of sight communication is not possible. It has been observed that the Q-factor of the signal were 29.53 and 25.80 in case of climatic conditions as clear and heavy Fog respectively. Practical significance. The transmission distance can be increased using brighter lights like used in real life headlights of cars and better photodiodes with higher photo sensitivity and fast response time. The proposed prototype is useful in the case of traffic jams and other traffic scenarios.


vehicle to vehicle, line of sight, nonline of sight, light emitting diode, Light Fidelity, atmospheric conditions

OCIS codes: 060.0060, 060.4510, 040.5160, 140.0140


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