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
收藏
页码：809 / 812
页数：4
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