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Design of a UAN Node Capable Of High Data Rate Transmission

F. Zabel,
C. Martins,
A. Silva,
SiPLAB - FCT, University of Algarve
Campus de Gambelas,
PT-8005-139 Faro, Portugal

Comments: download file (pdf )
Ref.: Sea Technology, Vol. 52, No. 3, pp. 32 - 36, March,2011.

Abstract: In recent years, underwater acoustic networks have become one of the most challenging topics in ocean acoustics. Generally, such networks are formed by both fixed and mobile underwater nodes. These client sensor nodes - such as moored underwater buoys, seafloor sensors and autonomous underwater vehicles (AUVs) - are simultaneously used to acquire environmental information and to communicate and relay it from other nodes in a network fashion.
Typical messaging between nodes consists of small pieces of information, including the status of the actuators, time, position, speed and commands, and can be supported by low-data-rate single-transducer modem connections. However, underwater monitoring and research increasingly requires access to a shore-based network for transmission of high volumes of information. Large amounts of data - for example, an optical or acoustic image, a sonar audio file, or oceanographic measurements - cannot be handled by underwater single-transducer links with poor power output and limited autonomy.

ACKNOWLEDGMENT: this work was funded by the European Union's Seventh Framework Programme (FP7/2007- 2013) UAN project under Grant Agreement #225669.