Fast half-duplex communication on e-textile based wearable networks

Abstract

Two-dimensional communication (2DC) textile is a technical combination of e-textile and two-dimensional signal transmission (2DST) technology. 2DC textile-based wearable system has several benefits, whereas designing a transmission scheme that ensures both power and high data rate transfer among numerous distributed devices on the textile is still challenging work. This paper proposes a charge/communication switching approach based on a baseband transmission system without modulation/demodulation of carriers. Successful power and more than 1 Mbps, half-duplex data transfer between one master and ten slaves was achieved. We also explain the trade-off relationship between the charging power, data rate, and device number by applying this approach.