Asym-MAC: A MAC Protocol for Low-Power Duty-Cycled Wireless Sensor Networks with Asymmetric Links

被引：12

作者：

Won, Myounggyu ^{[1
]}

Park, Taejoon ^{[1
]}

Son, Sang H. ^{[1
]}

机构：

[1] Daegu Gyeongbuk Inst Sci & Technol DG IST, Dept Informat & Commun Engn, Taegu, South Korea

来源：

IEEE COMMUNICATIONS LETTERS | 2014年 / 18卷 / 05期

关键词：

Wireless sensor networks; MAC protocols;

D O I：

10.1109/LCOMM.2014.032014.132679

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Duty-cycling is a primary technique significantly improving the energy efficiency of Wireless Sensor Networks (WSNs). Thus, a large number of MAC protocols have been developed for duty-cycled WSNs. Especially, recently proposed receiver-initiated MAC protocols are well suited for extremely low duty-cycled WSNs. However, as it is shown in this paper, they perform poorly when highly asymmetric links are present. In this paper, a hybrid MAC protocol called Asym-MAC is proposed which takes advantage of both receiver-initiated and sender-initiated MAC protocols to combat performance degradation due to asymmetric links. Experimental results demonstrate that Asym-MAC has up to 2.8X higher packet reception ratio and up to 66.7% smaller packet transmission delay compared with A-MAC, the state-of-the-art receiver-initiated MAC protocol.

引用

页码：809 / 812

页数：4

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