Framework for co-operative RFID tag reading in mobile environments with multiple readers

A framework for increasing throughput of RFID systems in an environment characterized with passive RFID tags on a mobile conveyor belt and multiple readers is introduced. The proposed framework involves information sharing among readers to improve the existing tag identification protocols in the mobile setting. The framework applies modifications to Tree and ALOHA protocols to reduce idle and collision times, thereby improving tag reading rates. The implementation of framework for two possible scenarios is described. Simulation results, whose performance aligns with the analytical models developed here, show that the framework improves the average tag reading rate of existing Tree and ALOHA based tag reading protocols.