Mobile Tag Reading in a Multi-reader Rfid Environment

Abstract

Radio Frequency Identification (RFID) refers to an emerging technology that intends, but not limited to replace barcode technology. RFID system assures to provide an effective inventorying, tracking and monitoring of any sorts of products in any field of applications. Recently, the large scale deployment of RFID system in supply chain management has necessities the use of multiple readers. Unfortunately, multi-reader RFID system suffers from reader collision problems that severely affect the system performance. Hence, this thesis aims to propose a novel framework for multi-reader RFID system based on Framed Slotted ALOHA protocol. The proposed framework is specific to a scenario in supply chain where a tag affixed to an item is in motion that moves on a conveyor belt and multiple readers which are fixed around the conveyor belt are supposed to read all the items. This work also determines the best pattern for the distribution of the tags on the conveyor belt.