NDLI: From underwater simulation to at-sea testing using the ns-2 network simulator

Content Provider	IEEE Xplore Digital Library
Author	Petrioli, C. Petroccia, R. Shusta, J. Freitag, L.
Copyright Year	2011
Description	Author affiliation: Dipartimento di Informatica, Università di Roma “la Sapienza”, Roma, Italy (Petrioli, C.; Petroccia, R.) \|\| Woods Hole Oceanographic Institute, Woods Hole, MA, USA (Shusta, J.; Freitag, L.)
Abstract	Although several network protocols for underwater acoustic wireless sensor networks have been proposed in the past, having a complete and accurate understanding of the performance of these protocols is not an easy task. The unique characteristics of the underwater acoustic communication channel, such as limited capacity, high and variable propagation delays, frequency-dependent attenuation and significant impact of highly variable environmental conditions, motivate the fact it is quite challenging to identify simple but accurate channel models. Such models are instead needed to improve accuracy of simulation results and to be able to derive fundamental results on underwater communications performance. To facilitate the research in underwater sensor networks, it would be really desirable to have a standard platform for simulation, emulation and real-life testing in order to be able to compare and evaluate different network designs, algorithms and protocols in a variety of settings and application scenarios. With this objective in mind, we have developed a framework to seamlessly simulate, emulate and test at sea novel communication protocols, which is based on the open source and well known network simulator ns-2 [1]. Using the proposed framework, anyone willing to implement its solution for simulation experiments using ns-2 can use the same code in emulation mode, adopting real acoustic modem for data transmission. The framework code has also successfully been ported on small portable devices (Gumstix [2]), thus allowing us to embed it inside modem or AUV housings. Therefore, it becomes easy for the research community to write code and evaluate protocols on a real testbed. Different drivers allowing ns-2 to operate with commercial acoustic modems, such as FSK and PSK Micro-Modem [3], Evologics modem [4] and Kongsberg modem [5], have already been implemented.
Starting Page	1
Ending Page	9
File Size	1255156
Page Count	9
File Format	PDF
ISBN	9781457700866
e-ISBN	9781457700880
DOI	10.1109/Oceans-Spain.2011.6003638
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-06
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Modems Protocols Acoustics Emulation Hardware Computational modeling Software sea trial testing Underwater acoustic networks simulation emulation ns-2 underwater wireless sensor networks
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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