A Node-Grouping MAC Protocol in Delay-Tolerant Underwater Acoustic Sensor Networks 


Vol. 36,  No. 10, pp. 1200-1209, Oct.  2011


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  Abstract

In this paper, we propose a novel energy efficient MAC protocol which is based on orthogonal frequency division multiple access (OFDMA) and exploits the physical characteristic that propagation loss of acoustic wave depends on the distance. In the proposed scheme, sensor nodes are grouped according to the distance to sink node. Then, each group uses a different frequency band. The proposed scheme not only enables all sensor nodes to maintain the signal-to-noise ratio above a certain required level (Accepted Minimum SNR, AMS), but also reduces overall transmission power consumption. In addition, the dynamic sub-channel allocation is employed in order to improve data transmission rate. Simulations show that proposed MAC protocol has better performance in a delay-tolerant underwater acoustic sensor networks.

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  Cite this article

[IEEE Style]

J. Cheon, K. Son, Y. Jang, H. Cho, "A Node-Grouping MAC Protocol in Delay-Tolerant Underwater Acoustic Sensor Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 10, pp. 1200-1209, 2011. DOI: .

[ACM Style]

Jinyong Cheon, Kweon Son, Youn-seon Jang, and Ho-Shin Cho. 2011. A Node-Grouping MAC Protocol in Delay-Tolerant Underwater Acoustic Sensor Networks. The Journal of Korean Institute of Communications and Information Sciences, 36, 10, (2011), 1200-1209. DOI: .

[KICS Style]

Jinyong Cheon, Kweon Son, Youn-seon Jang, Ho-Shin Cho, "A Node-Grouping MAC Protocol in Delay-Tolerant Underwater Acoustic Sensor Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 10, pp. 1200-1209, 10. 2011.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880