Performance modeling and design of backscatter RFID systems: A statistical approach

This thesis provides a statistical framework for performance modeling and design of backscatter Radio Frequency Identification (RFID) systems. The thesis also explores the uncertainties associated with certain parameters like tag orientation, gain of tag antenna, and power of reader antenna to ascertain a relationship between the measured and predicted values of tag read-rate probabilities.; The current models for specifying and estimating performance are based purely on EM theory (e.g., using Friis free space equations) or statistical experimental modeling principles. This thesis investigates a statistical approach for assessing the system performance and proposes an analytical probabilistic model based on Friis free space expression that captures the uncertainties existing in gain of tag antenna, power of reader antenna, frequency hopping, etc.; Finally the thesis suggests a set of techniques to increase read-rate probabilities of RFID tags when placed on metal objects or in the presence of highly metallic environments. The suggested set of techniques make the tag comparatively more stable in normal operating conditions and increases its readability up to 100%. (Abstract shortened by UMI.)...