Pervasive Sensing: Macro to Nanoscale

Technological breakthroughs in the fields of nano‐fabrication have enabled us to realize miniaturized communication systems. Nano‐scale pervasive sensing is a vision through which vital physiological data of a patient are captured with the help of self‐powered nano‐sensors that are positioned on human skin. The collected data can then be used for a variety of diagnostic purposes. This chapter deals with the challenges involved in the deployment of these nano‐scale sensing networks. Specifically, we discuss the terahertz frequency electromagnetic wave propagation on human skin with the help of which nano‐scale communication takes places.