Wireless networking technologies for vital data collection from a large number of exercisers

Abstract

In this talk, we discuss challenges in wireless networking technologies for realizing real-time and reliable vital data collection from a large number of exercisers. Especially, we focus on vital data collection for sports-day events in schools. We propose a wireless communications system where vital data obtained by a vital sensor attached to the back-waist position of each exerciser are collected by employing wireless networking technologies. In this scenario, wireless transmissions suffer from attenuations due to shadowing caused by human bodies, which requires multi-hop transmissions of sensing data. Furthermore, we need to alleviate the impact of congestion resulting from simultaneous transmissions of a large number of sensor nodes. Therefore, we apply multi-hop communications protocols with multi-channel settings to our system. With computer simulation results, we discuss challenges to improve the reliability of data communications in our proposed system.