The multi-channel MAC protocol for high performance underwater sensor networks

被引：0

作者：

Su, Yishan ^{[1
]}

Jin, Zhigang ^{[1
,2
]}

Dou, Fei ^{[1
]}

机构：

[1] School of Electronic and Information Engineering, Tianjin University, Tianjin

[2] Information and Science Experimental Center of Guangxi, Guilin

来源：

Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2015年 / 36卷 / 07期

关键词：

Fairness; Hidden terminal; MAC protocol; Multi-channel; Underwater sensor networks;

D O I：

10.3969/j.issn.1006-7043.201403093

中图分类号：

学科分类号：

摘要：

This paper proposes a multi-channel medium access control (MAC) protocol named SFM-MAC to tackle the spatial fairness problem that results from the spatial-temporal uncertainty in underwater sensor networks (UWSNs) and to realize multi-channel communication. SFM-MAC enables hosts to utilize multiple channels via only one transducer. The proposed protocol, combining with the location information, fairly accesses channels and avoids the multi-channel hidden terminal problem by a RTS/CA/CL/CTS handshaking scheme. The Markov chain was used to build the reservation model of the control channel, and the theoretical throughput of the multi-channel MAC protocol under the reservation collision condition was analyzed and computed. The simulation results show that comparing with the traditional RTS/CTS protocol, SFM-MAC achieves a better fairness index that increases by 15%. Additionally, the results showed that SFM-MAC outperforms slotted FAMA and UMMAC in terms of network throughput by 60%~70% and 12%~15% in two representative network scenarios, respectively, proving that SFM-MAC can effectively improve network fairness and throughput. ©, 2015, Editorial Board of Journal of HEU. All right reserved.

引用

页码：987 / 991

页数：4

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