Wideband system-level simulator for passive UHF RFID

Abstract

A chip manufacturing process requires extensive support of CAD-tools in order to predict the behavior of the embedded circuitry and to ensure the intended system functionality. Past experience shows that the overall performance of UHF RFID systems is mainly limited by multipath propagation and detuning. In this context, system-level simulations are vital to assess the overall performance and improve the embedded circuit. We present a simulator framework capable of handling chiplevel tag models, fading MIMO radio channels, and interrogator building blocks on signal level. It is based on highly flexible behavioral tag-models instead of highly accurate but static ASIC models. In contrast to other UHF RFID simulators, it is explicitly designed to handle wideband signals, fading channels, nonlinearities, and detuning effects. The simulator is currently used to develop and evaluate the performance of ranging and realtime channel estimation systems. The presented results emphasize the feasibility of our framework in the evaluation of a range estimation approach between a standard UHF RFID transponder and an interrogator.

Indoor localization using augmented ultra-high-frequency radio frequency identification system for Internet of Things

“…PASS is a time-domain systemlevel simulator, which is based on position-aware RFID system (PARIS) simulation framework. 31 The development environment is MATLAB 2012a on Windows 8.1 (64 bits). The development of PASS simulation framework aspires to facilitate the research for indoor localization with UHF RFID technology.…”

“…PASS is a time-domain systemlevel simulator, which is based on position-aware RFID system (PARIS) simulation framework. 31 20 Noteworthily, the Q selection algorithm in Gen2 protocol is not implemented in the simulator, since the simulation platform MATLAB is discommodious for scheduling algorithm and also slow for massive computation tasks. Having the whole system implemented in the simulator allows for much faster evaluation of the system and faster validation of the effectiveness of ideas.…”