Energy Harvesting Based on SLIPT in V2V-VLC System under Atmospheric Weather Conditions

Vehicular connectivity is mostly based on wireless access. The vehicular applications may be limited due to the limited battery life of the equipment involved. To address this issue, a method based on simultaneous light wave information and power transfer (SLIPT) is proposed for harvesting the energy in the Vehicle-to-Vehicle Visible Light Communication (V2V-VLC) system. The purpose of SLIPT is to harvest energy using light sources while decoding information. This article studies the effect of SLIPT in a (V2V-VLC) system taking into account the climatic conditions in the atmosphere. In this method, the received light from the Headlights (HLs) car source at the vehicle destination is harvested while decoding the information signal. First, for V2V VLC channel modeling, a recent realistic channel model using the ray-tracing method is utilized. Then, we propose the energy harvesting analysis based on the SLIPT strategy. After that, we investigate the impact of both the longitudinal distance between the transmitter and the receiver and the receiver aperture on the amount of harvested energy. Furthermore, we investigate the relationship between the achievable information rate and the harvested energy amount. The obtained results demonstrate the significant impact of the communication distance, the required information rate, and the receiver aperture on the quantity of harvested energy.