Ricerc@Sapienza

Research on RFID has made significant progress in reducing the tag identification time, but almost ignored the concerns related to practical system deployment. RFID tags backscatter to the reader a signal that is weak and subject to interference from any nearby device operating on the same frequency, experiencing significant performance degradation when such condition occurs. This letter provides an analytic model to evaluate the impact of external interference on the main representatives of identification protocols.

With the ever-growing usage of batteries in the IoT era, the need for more eco-friendly technologies is clear. RF-powered computing enables the re-design of personal computing devices in a battery-less manner. While there has been substantial work on the underlying methods for RF-powered computing, practical applications of this technology has largely been limited to scenarios that involve simple tasks. This article demonstrates how RFID technology, typically used to implement object identification and counting, can be exploited to realize a battery-free Smart Home.