Underwater Experiment on CSMA/CA Protocol Using Commercial Modems 


Vol. 39,  No. 6, pp. 457-465, Jun.  2014


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  Abstract

This paper introduces a test bed for communication protocol schemes of underwater acoustic sensor network, and also shows experimental results obtained from the test bed. As a testing protocol, carrier sense multiple access/collision avoidance (CSMA/CA) is evaluated on underwater acoustic channel. A sensor node is equipped with a DSP control board of ATmega2560 and a commercial underwater modem produced by Benthos. The control board not only manipulates a GPS signal to acquire the information of location and time, but also controls the underwater modem to operate according to the procedure designed for a given testing protocol. Whenever any event takes place such as exchanging control/data packets between underwater modems and acquiring location and timing information, each sensor node reports them through radio frequency (RF) air interface to a central station located on the ground. The four kinds of packets for CSMA/CA, RTS(Request To Send), CTS(Clear to Send), DATA, ACK(Acknowledgement) are designed according to the underwater communication environment and are analyzed through the lake experiment from the point of feasibility of CSMA/CA in underwater acoustic communications.

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  Cite this article

[IEEE Style]

J. Cho, S. Lee, J. Shin, T. Lee, H. Cho, "Underwater Experiment on CSMA/CA Protocol Using Commercial Modems," The Journal of Korean Institute of Communications and Information Sciences, vol. 39, no. 6, pp. 457-465, 2014. DOI: .

[ACM Style]

Junho Cho, Sang-kug Lee, Jungchae Shin, Tae-Jin Lee, and Ho-Shin Cho. 2014. Underwater Experiment on CSMA/CA Protocol Using Commercial Modems. The Journal of Korean Institute of Communications and Information Sciences, 39, 6, (2014), 457-465. DOI: .

[KICS Style]

Junho Cho, Sang-kug Lee, Jungchae Shin, Tae-Jin Lee, Ho-Shin Cho, "Underwater Experiment on CSMA/CA Protocol Using Commercial Modems," The Journal of Korean Institute of Communications and Information Sciences, vol. 39, no. 6, pp. 457-465, 6. 2014.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880