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Proceedings Paper

Research on low-latency MAC protocols for wireless sensor networks
Author(s): Chenguang He; Xuejun Sha; Chankil Lee
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Paper Abstract

Energy-efficient should not be the only design goal in MAC protocols for wireless sensor networks, which involve the use of battery-operated computing and sensing devices. Low-latency operation becomes the same important as energy-efficient in the case that the traffic load is very heavy or the real-time constrain is used in applications like tracking or locating. This paper introduces some causes of traditional time delays which are inherent in a multi-hops network using existing WSN MAC protocols, illuminates the importance of low-latency MAC design for wireless sensor networks, and presents three MACs as examples of low-latency protocols designed specially for sleep delay, wait delay and wakeup delay in wireless sensor networks, respectively. The paper also discusses design trade-offs with emphasis on low-latency and points out their advantages and disadvantages, together with some design considerations and suggestions for MAC protocols for future applications and researches.

Paper Details

Date Published: 10 November 2007
PDF: 6 pages
Proc. SPIE 6795, Second International Conference on Space Information Technology, 67950F (10 November 2007); doi: 10.1117/12.773388
Show Author Affiliations
Chenguang He, Harbin Institute of Technology (China)
Xuejun Sha, Harbin Institute of Technology (China)
Chankil Lee, Hanyang Univ. (South Korea)

Published in SPIE Proceedings Vol. 6795:
Second International Conference on Space Information Technology

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