The Role of Bidirectional VLC Systems in Low-Latency 6G Vehicular Networks and Comparison with IEEE802.11p and LTE/5G C-V2X

Year: 2022

Authors: Caputo S., Mucchi L., Umair MA., Meucci M., Seminara M., Catani J.

Autors Affiliation: Univ Florence, Dept Informat Engn, I-50139 Florence, Italy; Univ Florence, European Lab NonLinear Spect LENS, I-50121 Sesto Fiorentino, Italy; Ist Nazl Ott CNR CNR INO, I-50121 Sesto Fiorentino, Italy; ARTES 4 0, Adv Robot & Enabling Digital Technol & Syst, I-56025 Pontedera, Italy.

Abstract: In this paper, we present very recent results regarding the latency characterization of a novel bidirectional visible light communication (VLC) system for vehicular applications, which could be relevant in intelligent transportation system (ITS) safety applications, such as the assisted and automated braking of cars and motorbikes in critical situations. The VLC system has been implemented using real motorbike head- and tail-lights with distances up to 27 m in a realistic outdoor scenario. We performed a detailed statistical analysis of the observed error distribution in the communication process, assessing the most probable statistical values of expected latency depending on the observed packet error rate (PER). A minimum attainable observed round-trip latency of 2.5 ms was measured. Using our dataset, we have also estimated the probability to receive correctly a message with a specific average latency for a target PER, and we compare it to the ultra-reliable low-latency (URLL) 5G communications service. In addition, a mobility model is implemented to compare the VLC and radio frequency (RF) technologies (IEEE802.11p, LTE, 5G) to support an automated braking systems for vehicles in urban platooning.

Journal/Review: SENSORS

Volume: 22 (22)      Pages from: 8618-1  to: 8618-12

More Information: The work received financial support from the following projects: MiUR PON 2017 ARS01_00917 OK-INSAID, CNR Progetti@CNR FluoCom, MiSE Centri di Competenza ARTES4.0 and MiUR FOE Progetto Premiale 2015 OpenLab 2, and MiSE PRato Industrial SMart Accelerator PRISMA.
KeyWords: visible light communication (VLC); 5G; 6G; intelligent transportation systems; bidirectional communication; vehicular communications
DOI: 10.3390/s22228618

Citations: 14
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