PERFORMANCE EVALUATION OF QUERY TREE-BASED MEMORYLESS ANTI-COLLISION PROTOCOLS IN RFID SYSTEM

Abstract

Radio Frequency IDentification (RFID) is widely used in many fields, such as industrial surveillance, supply chain management, material flow tracking, etc. Tag collisions are the primary factor influencing the overall performance of a passive RFID system. When multiple tags respond to the reader’s queries simultaneously, this is known as a tag collision. As a result, the reader is unable to identify the card. This paper analyzes and evaluates memoryless collision prevention protocols based on Query Tree (QT). The simulation’s findings demonstrate the effectiveness of the QT protocol and its variants in tag identification, where some QT variants offer particularly significant advantages. Results from analyses based on various performance evaluation criteria also indicate that harm to one criterion must occur in order to increase the performance of another. Thus, a compromise solution must be taken into account