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LDPC Equalizer for Compensating the CFO and Phase Noise in OFDM System

  • Conference paper
Book cover Communication and Networking (FGCN 2011)

Part of the book series: Communications in Computer and Information Science ((CCIS,volume 266))

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Abstract

In this paper, we propose decision feedback equalizer based on LDPC (Low Density Parity Check) code for fast processing and performance improvement. LDPC code has good error correcting ability and performance approaching Shannon capacity. However, it has more long parity check matrix and the number of iteration. In proposed system, MSE (mean square error) of signal between decision device and decoder is fed back to equalizer. If we use this method, proposed system can improve performance because it corrects estimated channel response more accurately. In addition, proposed system can reduce complexity because it has a lower number of iterations than system that does not include feedback at same performance. We evaluate performance of OFDM system considered CFO and phase noise in multipath channel via simulation.

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Author information

Authors and Affiliations

  1. Department of Electronic Engineering, Chungbuk National University, 12 Gaesin-dong, Cheongju, Korea

    Do-Hoon Kim & Heung-Gyoon Ryu

Authors
  1. Do-Hoon Kim
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  2. Heung-Gyoon Ryu
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Editor information

Editors and Affiliations

  1. Multimedia Engineering Department, Hannam University, 133 Ojeong-dong, Daeduk-gu, Daejeon, Korea

    Tai-hoon Kim

  2. The Ohio State University, 470 Hitchcock Hall, 2070 Neil Avenue, 43210-1275, Columbus, OH, USA

    Hojjat Adeli

  3. National Chiao Tung University, Hsinchu, Taiwan, R.O.C.

    Wai-chi Fang

  4. University of Western Macedonia, Kozani, Greece

    Thanos Vasilakos

  5. Jet Propulsion Laboratory/Caltech, NASA, 4800 Oak Grove Drive, 91109, Pasadena, CA, USA

    Adrian Stoica

  6. National Technical University of Athens, Heroon Politechniou 9, Zographou T.K., 157 73, Athens, Greece

    Charalampos Z. Patrikakis

  7. The Computing Laboratory, University of Kent, CT2 7NF, Canterbury, UK

    Gansen Zhao

  8. Universidad Complutense de Madrid, 28040, Madrid, Spain

    Javier García Villalba

  9. The University of Alabama, Tuscaloosa, AL, USA

    Yang Xiao

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© 2011 Springer-Verlag Berlin Heidelberg

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Kim, DH., Ryu, HG. (2011). LDPC Equalizer for Compensating the CFO and Phase Noise in OFDM System. In: Kim, Th., et al. Communication and Networking. FGCN 2011. Communications in Computer and Information Science, vol 266. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27201-1_2

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  • DOI: https://doi.org/10.1007/978-3-642-27201-1_2

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-27200-4

  • Online ISBN: 978-3-642-27201-1

  • eBook Packages: Computer ScienceComputer Science (R0)

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