A performance enhanced Miller modulated RFID EPC C1 Gen2 system

Jeon, Ki Yong; Kang, Min Soo; Cho, Sung Ho

doi:10.1109/atc.2008.4760529

Cited by 2 publications

(4 citation statements)

References 4 publications

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“…In addition to the benefits of using FEC in general, that were presented in [2], [13], [12] and [4], we demonstrated how the system can be improved further, without introducing additional redundancy. The proposed solution does work particularly well when used in conjunction with the FM0 baseband code.…”

Section: Discussionmentioning

confidence: 80%

“…This concludes the first iteration, and the output value of the outer decoder becomes input to the inner decoder. After the second iteration the I e,outer has increased further (2). Following the trajectory of the iterative decoding process, we note that in average it will only take three iterations until the optimum decoding result is reached, for an E b /N 0 = 2 dB.…”

Section: B Exit Chart Analysismentioning

confidence: 98%

“…When the use of channel codes is suggested, it is usually proposed to improve the tag-to-reader communication [2], [3], [4] using FEC. The reason for this is twofold.…”

Section: System Descriptionmentioning

confidence: 99%

“…With increasing distance, the tagto-reader link deteriorates and the increasing error probability ultimately inhibits a successful communication. Previous works [2], [3] including our own [4] show, how the read rate and range of the system can be increased by employing channel coding for forward error correction (FEC) for the tag-to-reader communication. In this work, we will extend this thought by investigating how the decoding of the tagto-reader communication can be improved when FEC is used in conjunction with the standard baseband codes that are used in long-range RFID systems.…”

Section: Introductionmentioning

confidence: 99%

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Iterative decoding of baseband and channel codes in a long-range RFID system

Schantin

2013

2013 IEEE International Conference on Industrial Technology (ICIT)

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In this work we propose an iterative decoder scheme for a long-range RFID system. Based on the results of existing works that suggest it is beneficial to employ forward error correction in future RFID systems, we investigate the possibilities for iteratively decoding the baseband code and the channel code of the system. We evaluate the proposed scheme by simulating its bit-error rate performance and analyze the convergence behavior of the iterative decoder, based on its extrinsic information transfer characteristics.

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Section: Discussionmentioning

confidence: 80%

Section: B Exit Chart Analysismentioning

confidence: 98%

“…When the use of channel codes is suggested, it is usually proposed to improve the tag-to-reader communication [2], [3], [4] using FEC. The reason for this is twofold.…”

Section: System Descriptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Iterative decoding of baseband and channel codes in a long-range RFID system

Schantin

2013

2013 IEEE International Conference on Industrial Technology (ICIT)

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Retransmission strategies for RFID systems using the EPC protocol

Schantin

Ruland

2013

2013 IEEE International Conference on RFID-Technologies and Applications (RFID-TA)

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The EPCglobal standard for Radio-Frequency Iden tity Protocols, widely know as EPC Class-! Gen-2 protocol, is a widespread standard for the identification and the read-write access to tags, in a long range UHF RFID system. On the one hand, the standard describes meticulously the tag responses to reader commands, during the tag inventory process. On the other hand, the standard does not impose many constraints concerning the implementation of the reader side, thus enabling designers and manufacturers alike to implement more or less sophisticated reader behavior. This work demonstrates how this freedom can be used to optimize the identification time in the system for a given tag population, when frame errors on the tag-to-reader channel are present. Some standard compatible retransmission strategies are proposed and evaluated in simulations. Additionally, an extension to the standard protocol, based on type-II hybrid ARQ, is proposed and evaluated. The results of the simulations show, that a suitable implementation of the retransmission strategy directly leads to an improved identification time at a degrading tag-to-reader channel, which in turn means that the operational range of the system can be increased, while the identification time is kept constant.

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A performance enhanced Miller modulated RFID EPC C1 Gen2 system

Cited by 2 publications

References 4 publications

Iterative decoding of baseband and channel codes in a long-range RFID system

Iterative decoding of baseband and channel codes in a long-range RFID system

Retransmission strategies for RFID systems using the EPC protocol

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