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21 August 2019 Unmanned-aerial-vehicle-assisted cooperative communications for visible light communications-based vehicular networks
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We propose and investigate cooperative visible light communications (VLC) enabled vehicular network architecture with an unmanned aerial vehicle (UAV) relay. In the proposed system, a UAV equipped with an onboard photodetector and light-emitting diodes is used as a relay in a vehicular VLC link. The advantage of having a flying UAV relay is its great mobility and ease of deployment. The performance of UAV-assisted cooperative VLC is investigated for amplify and forward and decode and forward protocols with half duplex and full duplex modes. Moreover, location of the UAV relay is optimized in order to maximize the signal-to-noise ratio at the destination vehicle. The active light beam tracking technique is further employed to increase the reliability of the proposed VLC system. Our results reveal that a UAV relay can significantly improve the transmission performance of conventional VLC-based vehicular networks.

© 2019 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2019/$28.00 © 2019 SPIE
Nurzhan Kalikulov, Refik Caglar Kizilirmak, and Murat Uysal "Unmanned-aerial-vehicle-assisted cooperative communications for visible light communications-based vehicular networks," Optical Engineering 58(8), 086110 (21 August 2019).
Received: 21 April 2019; Accepted: 1 August 2019; Published: 21 August 2019


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