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An extensive study of slotted ALOHA-based RFID anti-collision protocols

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dc.contributor.author Namboodiri, Vinod
dc.contributor.author DeSilva, Maheesha
dc.contributor.author Deegala, Kavindya
dc.contributor.author Ramamoorthy, Suresh
dc.date.accessioned 2012-06-07T17:57:32Z
dc.date.available 2012-06-07T17:57:32Z
dc.date.issued 2012-06-02
dc.identifier.citation Namboodiri, Vinod; DeSilva, Maheesha; Deegala, Kavindya & Suresh, Ramamoorthy.2012.An extensive study of slotted ALOHA-based RFID anti-collision protocols.Computer Communications, Available online 2 June 2012 en_US
dc.identifier.issn 0140-3664
dc.identifier.uri http://hdl.handle.net/10057/5119
dc.identifier.uri http://dx.doi.org/10.1016/j.comcom.2012.05.015
dc.description Click on the DOI link below to access the article (may not be free). en_US
dc.description.abstract Radio frequency identification (RFID) is used to identify, track, and manage tagged animate or inanimate objects automatically using wireless communication technology. A serious concern faced by RFID technology is the collisions that occur among tag responses when queried by a reader that limits system performance significantly. Collisions bring extra delay, a waste of bandwidth, and extra energy consumption to the interrogation process of RFID. This work extensively evaluates the performance of slotted Aloha based anti-collision protocols (that includes the current standard EPCGlobal Class 1 Generation 2) for passive tags through mathematical analysis, simulations, and practical experiments on a testbed. This comprehensive approach allows a better understanding of the theoretical and practical performance of RFID systems and the challenges that exist in improving practical performance in industrial settings. In particular, it is found that protocol mechanisms for the current standard theoretically add 10% overhead to the basic frame slotted Aloha in ideal conditions. Further, results indicate that factors like interference, antenna gain, and protocol implementation can add 50% additional delay in practical settings. This work also performs a low-level investigation of protocol behavior through power measurements and characterizes energy consumption in RFID readers. en_US
dc.language.iso en_US en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Computer Communications;Available online 2 June 2012
dc.subject RFID en_US
dc.subject Anti-collision protocols en_US
dc.subject Slotted Aloha en_US
dc.subject EPCGlobal Class 1 Gen 2 en_US
dc.subject Performance evaluation en_US
dc.title An extensive study of slotted ALOHA-based RFID anti-collision protocols en_US
dc.type Article en_US
dc.description.version Peer reviewed
dc.rights.holder Copyright © 2012 Published by Elsevier B.V.

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