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Front. Inform. Technol. Electron. Eng.  2011, Vol. 12 Issue (11): 932-941    DOI: 10.1631/jzus.C1000388
    
Funneling media access control (MAC) protocol for underwater acoustic sensor networks
Guang-yu Fan1,2, Hui-fang Chen*,1, Lei Xie1, Kuang Wang1
1 Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China 2 School of Electronic Information, Shanghai Dianji University, Shanghai 200240, China
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Abstract  Due to the characteristics of the underwater acoustic channel, such as long propagation delay and low available bandwidth, the media access control (MAC) protocol designed for underwater acoustic sensor networks (UWASNs) is quite different from that for terrestrial wireless sensor networks. In this paper, we propose a MAC protocol for the UWASNs, named the funneling MAC (FMAC-U), which is a contention-based MAC protocol with a three-way handshake. The FMAC-U protocol uses an improved three-way handshake mechanism and code division multiple access (CDMA) based technology for request-to-send (RTS) signals transmitting to the sink in order that the sink can receive packets from multiple neighbors in a fixed order during each round of handshakes. The mechanism reduces the packet collisions and alleviates the funneling effect, especially alleviating the choke point of the UWASNs. Simulation results show that the proposed FMAC-U protocol achieves higher throughput, smaller packet drop ratio, lower end-to-end delay, and lower overhead of the control packet compared to the existing MAC protocols for UWASNs.

Key wordsUnderwater acoustic sensor networks (UWASNs)      Funneling media access control (MAC)      Funneling effect      Three-way handshake     
Received: 03 November 2010      Published: 04 November 2011
CLC:  TN929.3  
Cite this article:

Guang-yu Fan, Hui-fang Chen, Lei Xie, Kuang Wang. Funneling media access control (MAC) protocol for underwater acoustic sensor networks. Front. Inform. Technol. Electron. Eng., 2011, 12(11): 932-941.

URL:

http://www.zjujournals.com/xueshu/fitee/10.1631/jzus.C1000388     OR     http://www.zjujournals.com/xueshu/fitee/Y2011/V12/I11/932


Funneling media access control (MAC) protocol for underwater acoustic sensor networks

Due to the characteristics of the underwater acoustic channel, such as long propagation delay and low available bandwidth, the media access control (MAC) protocol designed for underwater acoustic sensor networks (UWASNs) is quite different from that for terrestrial wireless sensor networks. In this paper, we propose a MAC protocol for the UWASNs, named the funneling MAC (FMAC-U), which is a contention-based MAC protocol with a three-way handshake. The FMAC-U protocol uses an improved three-way handshake mechanism and code division multiple access (CDMA) based technology for request-to-send (RTS) signals transmitting to the sink in order that the sink can receive packets from multiple neighbors in a fixed order during each round of handshakes. The mechanism reduces the packet collisions and alleviates the funneling effect, especially alleviating the choke point of the UWASNs. Simulation results show that the proposed FMAC-U protocol achieves higher throughput, smaller packet drop ratio, lower end-to-end delay, and lower overhead of the control packet compared to the existing MAC protocols for UWASNs.

关键词: Underwater acoustic sensor networks (UWASNs),  Funneling media access control (MAC),  Funneling effect,  Three-way handshake 
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