<Session 3: Biomedical Technology>A distributed wearable EM field recorder for RF exposure assessment in real environments

Abstract

The wireless market has been growing at a tremendous speed and an ever-increasing number of radio-frequency systems are carried around by people. Therefore, the World Health Organization has indicated the need for an RF exposure assessment to describe the public electromagnetic environment. Current portable RF dosimeters suffer from a lack of wearability due to their size and rigidity. Moreover, they experience low signal reliability due to shadowing of the body. This paper introduces a personal distributed exposimeter, developed with off-the-shelf components. The system contains ten wearable nodes. Each node comprises RF transceivers that measure the received signal strength in the mobile communication and Wi-Fi channels. Two different topologies to acquire the radiation power are discussed.