Abstract
Wireless Body Area Network has become emerging technology to improve the health care and provide a cost effective solution for the remote sensing of physiological parameters of the human body. The different body postures impact the connectivity of the network deployed over the body. The connectivity is further degraded if the power level of the radio is kept low in order to save the precious energy of the sensor nodes. This paper aims to analyse the impact of different radio power level for various body postures on the communication reliability. Numerous experiments were conducted using IRIS mote at different power levels to monitor the communication reliability with respect to different postures and movements of the body. (C) 2014 Published by Elsevier B.V.