NDLI: RMAC-M: Extending the R-MAC protocol for an energy efficient, delay tolerant underwater acoustic sensor network application with a mobile data mule node

Content Provider	IEEE Xplore Digital Library
Author	Samad, S.A. Shenoy, S.K. Kumar, G.S. Pillai, P.R.S.
Copyright Year	2011
Description	Author affiliation: Naval Phys. & Oceanogr. Lab., DRDO, Kochi, India (Samad, S.A.; Shenoy, S.K.) \|\| Cochin Univ. of Sci. & Technol., Kochi, India (Kumar, G.S.; Pillai, P.R.S.)
Abstract	One of the major applications of underwater acoustic sensor networks (UWASN) is ocean environment monitoring. Employing data mules is an energy efficient way of data collection from the underwater sensor nodes in such a network. A data mule node such as an autonomous underwater vehicle (AUV) periodically visits the stationary nodes to download data. By conserving the power required for data transmission over long distances to a remote data sink, this approach extends the network life time. In this paper we propose a new MAC protocol to support a single mobile data mule node to collect the data sensed by the sensor nodes in periodic runs through the network. In this approach, the nodes need to perform only short distance, single hop transmission to the data mule. The protocol design discussed in this paper is motivated to support such an application. The proposed protocol is a hybrid protocol, which employs a combination of schedule based access among the stationary nodes along with handshake based access to support mobile data mules. The new protocol, RMAC-M is developed as an extension to the energy efficient MAC protocol R-MAC by extending the slot time of R-MAC to include a contention part for a hand shake based data transfer. The mobile node makes use of a beacon to signal its presence to all the nearby nodes, which can then handshake with the mobile node for data transfer. Simulation results show that the new protocol provides efficient support for a mobile data mule node while preserving the advantages of R-MAC such as energy efficiency and fairness.
Sponsorship	IEEE Oceanic Eng. Soc.
Starting Page	217
Ending Page	223
File Size	649380
Page Count	7
File Format	PDF
ISBN	9781467302630
e-ISBN	9781467302661
DOI	10.1109/SYMPOL.2011.6170523
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-11-16
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Schedules Wireless sensor networks Protocols MAC Protocol Data Mule Logic gates Mobile communication Energy efficiency R-MAC Underwater Acoustic Sensor Networks Energy Efficiency Mobile computing
Content Type	Text
Resource Type	Article

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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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