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Performance of Efficient Signal Detection for LED-ID Systems

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Abstract

In this paper, effects of reader-to-reader interference are investigated for LED identification (LED-ID) system in a multi-reader environment. The LED-ID readers typically use different channels to avoid collision between readers. However, in-channel collision usually happens in terms of interrogation range. A reader-to-reader interference scenario is proposed, and nominal interrogation range of a desired reader is derived from this model. In order to evaluate the LED-ID reader-to-reader interference quantitatively, an efficient detection scheme is proposed and simulated by employing spreading sequence. The spreading sequence is inserted between each user’s frame formats. In the receiver, the desired signal is detected by using correlation among inserted spreading sequences. From simulation results, it is confirmed that the proposed scheme is very effective to enhance reliability of LED-ID communication systems.

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Authors and Affiliations

  1. Department of Wireless Communications Engineering, Kwangwoon University, Seoul, Korea

    In Hwan Park, Yoon Hyun Kim & Jin Young Kim

  2. Department of Media Engineering, Seoul National University of Technology, Seoul, Korea

    Jae Sang Cha

  3. College of Electrical Engineering, Kookmin University, Seoul, Korea

    Yeong Min Jang

Authors
  1. In Hwan Park
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  2. Yoon Hyun Kim
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  3. Jae Sang Cha
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  4. Yeong Min Jang
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  5. Jin Young Kim
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Correspondence to Jin Young Kim.

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Park, I.H., Kim, Y.H., Cha, J.S. et al. Performance of Efficient Signal Detection for LED-ID Systems. Wireless Pers Commun 60, 533–545 (2011). https://doi.org/10.1007/s11277-011-0307-6

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  • DOI: https://doi.org/10.1007/s11277-011-0307-6

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