A Robust Underwater Networking Stack for Sensing Applications in Singapore Waters

Hwee Pink Tan, Xiaoping Ma, Roee Diamant, Alvin Valera

Research output: Contribution to conferencePaper


Various novel applications of underwater acoustic sensor networks
have emerged or been proposed in recent years. As such networks are expected to remain in situ for long durations, multi-hop networking schemes are required for robust and energy-efficient data dissemination. These can be particularly
challenging in the warm and shallow waters around Singapore.

In addition, for meaningful interpretation of sensed data and to assist with network scheduling and data dissemination, accurate underwater localization, typically achieved through range-based methods, is needed. However, signal reflections from the sea surface or bottom, or from objects such as ship hulls and docks, can give rise to localization inaccuracies if falsely identified as the line-of-sight (LOS) and must therefore be identified.

In this paper, we present our experiences in the design and testing of (i) a robust
multi-hop underwater network for long-range sensing and (ii) a classification of
time-of-arrival measurements to LOS and non-LOS to improve the accuracy of range-based underwater localization in Singapore waters.
Original languageEnglish
Number of pages8
StatePublished - May 2012
EventInternational Waterside Security Conference - , Singapore
Duration: 1 May 20131 May 2013
Conference number: 3rd


ConferenceInternational Waterside Security Conference
Abbreviated titleWSS


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