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Bit level synchronized MAC protocol for multireader RFID networks
Namboodiri, Vinod Pendse, Ravi
Namboodiri, Vinod
Pendse, Ravi
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2010-07-12
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Namboodiri, Vinod and Ravi Pendse. 2010. Bit Level Synchronized MAC Protocol for Multireader RFID
Networks. EURASIP Journal on Wireless Communications and Networking, Volume 2010, Article ID
956578, 15 pages
Abstract
The operation of multiple RFID readers in close proximity results in interference between the readers. This issue is termed the
reader collision problem and cannot always be solved by assigning them to different frequency channels due to technical and
regulatory limitations. The typical solution is to separate the operation of such readers across time. This sequential operation,
however, results in a long delay to identify all tags. We present a bit level synchronized (BLSync) MAC protocol for multi-reader
RFID networks that allows multiple readers to operate simultaneously on the same frequency channel. The BLSync protocol solves
the reader collision problem by allowing all readers to transmit the same query at the same time. We analyze the performance of
using the BLSync protocol and demonstrate benefits of 40%–50% in terms of tag reading delay for most settings. The benefits of
BLSync, first demonstrated through analysis, are then validated and quantified through simulations on realistic reader-tag layouts.
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© 2010 Vinod Namboodiri and Ravi Pendse.
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Hindawi Publishing Corporation
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EURASIP Journal on Wireless Communications and Networking;Volume 2010, 15 pages (2010)
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This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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1687-1472