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A New Network Coding Scheme in Two-relay OFDMA Networks

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Trustworthy Computing and Services (ISCTCS 2014)

Part of the book series: Communications in Computer and Information Science ((CCIS,volume 520))

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Abstract

In orthogonal frequency division multiple access (OFDMA) networks, relay nodes utilize network coding for the received information to improve spectrum efficiency. However, network coding spreads may result in some errors. These bit errors along the relay’s transmission, which results in high BER in receivers. To solve the error spread problem, we propose a new coding algorithm called dualism network coding (DNC) algorithm to cripple the spread of error effectively for 2-relay networks. In the proposed algorithm, relay node reuse the bit decoded from the received information for the network coding of next slot. The simulation results show that the proposed algorithm is effective to solve the problem of error propagation effectively.

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Acknowledgement

This work is supported by the National Natural Science Foundation of China under Grant No. 61272506, No.61170225.

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Authors and Affiliations

  1. School of Computer and Communication Engineering, University of Science and Technology Beijing (USTB), Beijing, 100083, People’s Republic of China

    Hui Zhao, Yueyun Chen & Xiaopan Yuan

Authors
  1. Hui Zhao
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  2. Yueyun Chen
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  3. Xiaopan Yuan
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Corresponding author

Correspondence to Hui Zhao .

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Editors and Affiliations

  1. Beijing University of Posts and Telecommuncations, Beijing, China

    Lu Yueming

  2. Beijing University of Posts and Telecommunications, Beijing, China

    Wu Xu

  3. Beijing University of Posts and Telecommunications, Beijing, China

    Zhang Xi

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Zhao, H., Chen, Y., Yuan, X. (2015). A New Network Coding Scheme in Two-relay OFDMA Networks. In: Yueming, L., Xu, W., Xi, Z. (eds) Trustworthy Computing and Services. ISCTCS 2014. Communications in Computer and Information Science, vol 520. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-47401-3_38

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  • DOI: https://doi.org/10.1007/978-3-662-47401-3_38

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-662-47400-6

  • Online ISBN: 978-3-662-47401-3

  • eBook Packages: Computer ScienceComputer Science (R0)

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