Secure Wake-Up Scheme for WBANs

Jing-Wei LIU  Moshaddique Al AMEEN  Kyung-Sup KWAK  

IEICE TRANSACTIONS on Communications   Vol.E93-B   No.4   pp.854-857
Publication Date: 2010/04/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.854
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Information and Communication Technology for Wellness and Medical Applications)
WBAN,  wake-up authentication code,  low energy consumption,  AES,  

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Network life time and hence device life time is one of the fundamental metrics in wireless body area networks (WBAN). To prolong it, especially those of implanted sensors, each node must conserve its energy as much as possible. While a variety of wake-up/sleep mechanisms have been proposed, the wake-up radio potentially serves as a vehicle to introduce vulnerabilities and attacks to WBAN, eventually resulting in its malfunctions. In this paper, we propose a novel secure wake-up scheme, in which a wake-up authentication code (WAC) is employed to ensure that a BAN Node (BN) is woken up by the correct BAN Network Controller (BNC) rather than unintended users or malicious attackers. The scheme is thus particularly implemented by a two-radio architecture. We show that our scheme provides higher security while consuming less energy than the existing schemes.