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Software-Defined Underwater Acoustic Modems: Historical Review and the NILUS Approach

Dol, Henry S. and Casari, Paolo and van der Zwan, Timo and Otnes, Roald (2017) Software-Defined Underwater Acoustic Modems: Historical Review and the NILUS Approach. [Journal Articles]

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Flexible/adaptive acoustic modems that are reprogrammable/reconfigurable at all layers of the communication stack, either by a user or by means of autonomous decisions, are considered as an important enabler for interoperability and cognitive networking in the underwater domain. In this paper, we review the existing literature on software-defined acoustic modems (SDAMs) for underwater communications and networking, considering past and ongoing academic efforts, as well as industrial developments and European collaborations centered on software-defined modem structures and functionalities. We then zoom in on relevant R&D efforts currently taking place in a defense cooperation between The Netherlands and Norway, targeting the design of a software-defined modem for the NILUS MK 2 sensor node. This modem is built using general-purpose (GP) computing architectures running open-source operating system and tools, thereby making a further step toward software-defined open-architecture underwater acoustic modems. The first field tests of the NILUS MK 2 node in multihop underwater acoustic networks are presented, showing satisfactory performance in shallow and open waters.

Item Type: Journal Articles
Uncontrolled Keywords: Hardware;Modems;Protocols;Signal processing algorithms;Software;Underwater acoustics;Open architecture;sea trials;software-defined modems;underwater acoustic communications;underwater wireless networks
Depositing User: Paolo Casari
Date Deposited: 18 Nov 2016 14:49
Last Modified: 28 Sep 2017 13:50

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