Comparative Study Between RFID Readers Anti-collision Protocols in Dense Environments

摘要

Radio Frequency IDentification (RFID) is a wireless communication technology, that suffers from a recurring issue and one of the most important challenges of RFID networks: Collision between readers that occurs when a several readers are placed very closely to each other, thus decreasing efficiency of RFID systems. In literature, many anti-collision protocols have been proposed to reduce reader collisions. In this paper we present a review of the best performing anti-collision protocols for RFID collision avoidance which are Geometry Distribution Reader Anti-collision (GDRA), Distance based RFID reader Collision Avoidance protocol (DRCA), Beacon Analysis based Collision Prevention (BACP), Distributed Efficient & Fair Anti-collision for RFID (DEFAR). This study is on the performance of these protocols in a dense RFID environment, advantages and disadvantages of each protocols in a static deployment where readers are immobile using MATLAB.