Performance analysis of underwater vertical wireless optical communication links using selection combining

In this paper, we have investigated the performance of underwater vertical wireless optical communication (UVWOC) links employing on–off key modulation for selection combining based receive diversity schemes in the presence of underwater turbulence, pointing errors, and attenuation losses. Due to va...

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Bibliographic Details
Published in:Applied optics (2004) 2023-11, Vol.62 (31), p.8229
Main Authors: C S, Savidhan Shetty, Naik, R. Prasad, Acharya, U. Shripathi
Format: Article
Language:English
Subjects:
Attenuation
Bit error rate
Closed form solutions
Errors
Exact solutions
Monte Carlo simulation
Optical communication
Probability distribution functions
Statistical analysis
Turbulence
Underwater communication
Wireless communications
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Summary:In this paper, we have investigated the performance of underwater vertical wireless optical communication (UVWOC) links employing on–off key modulation for selection combining based receive diversity schemes in the presence of underwater turbulence, pointing errors, and attenuation losses. Due to variations in temperature and salinity along the ocean’s depth, turbulence-induced fading affects the performance of the underwater vertical wireless optical link. The vertical link of the underwater medium influenced by a strong turbulence regime is modeled using cascaded gamma–gamma distribution considering multiple non-identical layers along with attenuation losses and pointing errors. We have derived closed-form expressions for the average bit error rate (BER) and outage probability (OP) for the link employing multiple detectors at the receiving end. The accuracy of all of the closed-form expressions derived in this paper has been validated using Monte Carlo simulations.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.503360