Author
Ijeh, I. C., Khalighi, M. A., Elamassie, Mohammed, Hranilovic, S., Uysal, Murat
Publication Date
2022-06-01
Publication Place
-
Optica Publishing Group
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
1943-0620
Record ID
c4cab1a2-efad-415c-94dd-201a3ee6ef2d
Library Location
Electrical & Electronics Engineering
Date
2022-06-01
Notes
Alex Ekwueme Federal University Ndufu-Alike ; Fresnel Institute ; IMT-Atlantique ; Institut Français de Recherche pour l'Exploitation de la Mer ; European Cooperation in Science and Technology
Sample Text
The reliability of an underwater wireless optical communication (UWOC) network is seriously impacted by beam misalignment between transmitters (Txs) and receivers (Rxs). Also, the performance of UWOC systems can be affected by oceanic turbulence-induced fading due to fluctuations in the water refractive index as a result of variations in the pressure, water temperature, and salinity. In this work, we investigate the performance analysis of a vertical UWOC link subject to oceanic turbulence and pointing errors and further investigate the appropriate selection of link parameters to optimize link performance. This study is based on an accurate mathematical framework for link modeling while taking into account realistic Tx/Rx and channel parameters under different turbulence and beam misalignment conditions. We provide an analytical expression for calculating the link outage probability, whose accuracy is validated through numerical simulations. Last, the necessity of optimal Tx/Rx parameter selection to minimize the link outage is demonstrated. A laser beam is considered at the Tx, as well as an ultra-sensitive photodetector (silicon photo-multiplier) at the Rx to enable working at relatively long link ranges. The presented results give valuable insight into the practical aspects of deployment of UWOC networks.
DOI
10.1364/JOCN.454191
Cilt
14
