Dual mode spectroscopic biomedical sensor: Technical considerations for the wireless testbed* *This work has been partly supported by the German Academic Exchange Service (Deutsche Akademische Austausch Dienst (DAAD)) and the University of Kassel.

Abstract

A real time implementation of a spectroscopy based dual mode sensor necessitates a timely and reliable transmission of information to and from the sensor. This becomes one of the pivotal roles of the sensor as the wireless transmission must be timely, accurate and reliable. For this purpose, our project aims to use a Gabor expansion model with a single-tap time-frequency channel model. This protocol has been planned to be used in a biomedical sensor system that aims for the detection of human breath for patients above 60. For this mechanism to work in dispersive channels, error introduced by this model needs to be minimized by optimizing Gabor prototype frames. We attempt to reduce this error via Newton method for a Wide-Sense Stationary Uncorrelated Scattering (WSSUS) environment. Therefore, numerous factors need to be considered, and have been presented. The sensitivity of this sensor setup in terms of least amount of discernible absorption coefficient is , and we attempt to maintain this value via our wireless approach. The suggested solution provides an error within a threshold of 1 to 2% in case of our results. In this manner, the sanctity of information going to and from the human body is tantamount to be highly accurate that highlights the efficiency of this scheme in our biomedical sensor.