1. Introduction: What is RFID?
RFID as a technology has grown rapidly over the past few years due to its application in various areas. After its inception, the cost of RFID tags have declined significantly over the past few years, that it is now beginning to replace the barcode system.  Unlike barcodes, RFID tags are smart tags with an in-built memory that can contain variety of information about the object. RFID makes use of radio waves to track objects. This automates tracking, reduces human workload and improves management. RFID tracking consists of tags and readers. An RFID tag consists of an integrated circuit that has memory and a transponder that acts a transmitter and receiver to send and receive information to the RFID reader.
Tags are of three types: Passive, active and Battery assisted passive tags (BAP). Passive tags operate without battery and are cheapest of all the tags. Active tags have an in-built battery that supplies power to the tag. Thu...
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