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Sensors 2015, 15(12), 30584-30616; doi:10.3390/s151229819

An On-Demand Emergency Packet Transmission Scheme for Wireless Body Area Networks

Department of Computer Science and Engineering, College of Electronics & Information, Kyung Hee University, Yongin-si, Gyeongggi-do 17104, Korea
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Author to whom correspondence should be addressed.
Academic Editor: Mohamed F. Younis
Received: 11 July 2015 / Revised: 24 November 2015 / Accepted: 29 November 2015 / Published: 4 December 2015
(This article belongs to the Section Sensor Networks)

Abstract

The rapid developments of sensor devices that can actively monitor human activities have given rise to a new field called wireless body area network (BAN). A BAN can manage devices in, on and around the human body. Major requirements of such a network are energy efficiency, long lifetime, low delay, security, etc. Traffic in a BAN can be scheduled (normal) or event-driven (emergency). Traditional media access control (MAC) protocols use duty cycling to improve performance. A sleep-wake up cycle is employed to save energy. However, this mechanism lacks features to handle emergency traffic in a prompt and immediate manner. To deliver an emergency packet, a node has to wait until the receiver is awake. It also suffers from overheads, such as idle listening, overhearing and control packet handshakes. An external radio-triggered wake up mechanism is proposed to handle prompt communication. It can reduce the overheads and improve the performance through an on-demand scheme. In this work, we present a simple-to-implement on-demand packet transmission scheme by taking into considerations the requirements of a BAN. The major concern is handling the event-based emergency traffic. The performance analysis of the proposed scheme is presented. The results showed significant improvements in the overall performance of a BAN compared to state-of-the-art protocols in terms of energy consumption, delay and lifetime. View Full-Text
Keywords: body area network (BAN); emergency; wake up radio; healthcare; media access control (MAC) body area network (BAN); emergency; wake up radio; healthcare; media access control (MAC)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Al Ameen, M.; Hong, C.S. An On-Demand Emergency Packet Transmission Scheme for Wireless Body Area Networks. Sensors 2015, 15, 30584-30616.

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