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Channel Modeling for Underwater Acoustic Network Simulation

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posted on 14.06.2020 by Nils Morozs, Wael Gorma, Benjamin Henson, Lu Shen, Paul Mitchell, Yuriy Zakharov
This manuscript was submitted to IEEE Access on 12 Jun 2020.

Abstract:

Simulation forms an important part of the development and empirical evaluation of underwater acoustic network (UAN) protocols. The key feature of a credible network simulation model is a realistic channel model. A common approach to simulating realistic underwater acoustic (UWA) channels is by using specialised beam tracing software such as BELLHOP. However, BELLHOP and similar modeling software typically require knowledge of ocean acoustics and a substantial programming effort from UAN protocol designers to integrate it into their research. In this paper, we bridge the gap between low level channel modeling via beam tracing and automated channel modeling, e.g. via the World Ocean Simulation System (WOSS), by providing a distilled UWA channel modeling tutorial from the network protocol design point of view. The tutorial is accompanied by our MATLAB simulation code that interfaces with BELLHOP to produce channel data for UAN simulations. As part of the tutorial, we describe two methods of incorporating such channel data into network simulations, including a case study for each of them: 1) directly importing the data as a look-up table, 2) using the data to create a statistical channel model. The primary aim of this paper is to provide a useful learning resource and modeling tool for UAN protocol researchers. Initial insights into the UAN protocol design and performance provided by the statistical channel modeling approach presented in this paper demonstrate its potential as a powerful modeling tool for future UAN research.

Funding

EPSRC EP/P017975/1

EPSRC EP/R003297/1

History

Email Address of Submitting Author

nils.morozs@york.ac.uk

ORCID of Submitting Author

0000-0001-9862-7378

Submitting Author's Institution

University of York

Submitting Author's Country

United Kingdom

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in IEEE Access

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