Authors: Georgios Selimis Li Huang Fabien Massé Ioanna Tsekoura Maryam Ashouei Francky Catthoor Jos Huisken Jan Stuyt Guido Dolmans Julien Penders Harmke De Groot
Publish Date: 2011/03/05
Volume: 35, Issue: 5, Pages: 1289-1298
Abstract
In order for wireless body area networks to meet widespread adoption a number of security implications must be explored to promote and maintain fundamental medical ethical principles and social expectations As a result integration of security functionality to sensor nodes is required Integrating security functionality to a wireless sensor node increases the size of the stored software program in program memory the required time that the sensor’s microprocessor needs to process the data and the wireless network traffic which is exchanged among sensors This security overhead has dominant impact on the energy dissipation which is strongly related to the lifetime of the sensor a critical aspect in wireless sensor network WSN technology Strict definition of the security functionality complete hardware model microprocessor and radio WBAN topology and the structure of the medium access control MAC frame are required for an accurate estimation of the energy that security introduces into the WBAN In this work we define a lightweight security scheme for WBAN we estimate the additional energy consumption that the security scheme introduces to WBAN based on commercial available offtheshelf hardware components microprocessor and radio the network topology and the MAC frame Furthermore we propose a new microcontroller design in order to reduce the energy consumption of the system Experimental results and comparisons with other works are given
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