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10 January 2020 On impact of imperfect channel state information on dual-hop nonline-of-sight ultraviolet communication over turbulent channel
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Abstract

Nonline-of-sight (NLOS) ultraviolet (UV) communication is expected to play a prominent role in wireless communications with enhanced connectivity due to the aerosol and strong molecular scattering and availability of large unlicensed bandwidth. We investigate the performance of NLOS UV co-operative communication over a log-normal fading channel by considering the channel estimation error, as experienced in practical UV communication systems. An analytical framework for a dual-hop amplify-and-forward UV NLOS cooperative relay is developed. We derive the closed-form expressions of lower-bound outage probability and the average symbol error rate for the energy efficient modulation schemes, such as hexagonal quadrature amplitude modulation (QAM) and rectangular QAM schemes. The derived analytical results are validated through the Monte Carlo simulations.

© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2020/$28.00 © 2020 SPIE
Parvez Shaik, Kamal K. Garg, and Vimal Bhatia "On impact of imperfect channel state information on dual-hop nonline-of-sight ultraviolet communication over turbulent channel," Optical Engineering 59(1), 016106 (10 January 2020). https://doi.org/10.1117/1.OE.59.1.016106
Received: 2 November 2019; Accepted: 17 December 2019; Published: 10 January 2020
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