TIIS (한국인터넷정보학회)
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| 한글제목(Korean Title) |
Adaptive Duty Cycling MAC Protocols Using Closed-Loop Control for Wireless Sensor Networks |
| 영문제목(English Title) |
Adaptive Duty Cycling MAC Protocols Using Closed-Loop Control for Wireless Sensor Networks |
| 저자(Author) |
Jaehyun Kim
Seoggyu Kim and Jaiyong Lee
|
| 원문수록처(Citation) |
VOL 05 NO. 01 PP. 0105 ~ 0122 (2011. 01) |
한글내용
(Korean Abstract) |
|
영문내용
(English Abstract) |
The fundamental design goal of wireless sensor MAC protocols is to minimize unnecessary power consumption of the sensor nodes, because of its stringent resource constraints and ultra-power limitation. In existing MAC protocols in wireless sensor networks (WSNs), duty cycling, in which each node periodically cycles between the active and sleep states, has been introduced to reduce unnecessary energy consumption. Existing MAC schemes, however, use a fixed duty cycling regardless of multi-hop communication and traffic fluctuations. On the other hand, there is a tradeoff between energy efficiency and delay caused by duty cycling mechanism in multi-hop communication and existing MAC approaches only tend to improve energy efficiency with sacrificing data delivery delay. In this paper, we propose two different MAC schemes (ADS-MAC and ELA-MAC) using closed-loop control in order to achieve both energy savings and minimal delay in wireless sensor networks. The two proposed MAC schemes, which are synchronous and asynchronous approaches, respectively, utilize an adaptive timer and a successive preload frame with closed-loop control for adaptive duty cycling. As a result, the analysis and the simulation results show that our schemes outperform existing schemes in terms of energy efficiency and delivery delay. |
| 키워드(Keyword) |
MAC
wireless sensor network
duty cycling
energy efficiency
delivery delay
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| 파일첨부 |
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