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Measurement-based Simulation of Underwater Optical Networks

Abstract—The increasing interest in the application of optical
communications to underwater communications and networks
calls for reliable simulation models, that allow a system designer
to realistically assess the performance of optical systems before
actual deployment in water. In this paper, we present an optical
channel model that is based on samples of the total attenuation
coefficient and of the solar light irradiance taken during the
NATO STO CMRE ALOMEX’15 scientific cruise, in different
water conditions. The data set includes both strong and mild
solar illumination conditions, as well as a number of different
settings for the light absorption and scattering coefficients.
We implement the model as part of the DESERT Underwater
network simulator, and employ it to show that the throughput
of underwater optical links depends not only on the distance
between the transmitter and the receiver, but also on the depth
at which the devices are deployed. The corresponding insight is
empirically validated in dry tests and lake experiments using a
proof-of-concept optical modem, and helped drive the next stage
of the modem development.

Authors:

Filippo Campagnaro, Matteo Calore, Paolo Casari, Violeta Sanjuan Calzado, Giacomo Cupertino, Claudio Moriconi, Michele Zorzi

Published On:

Oceans 2017 Aberdeen

Publication Year:

2017

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