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A Study on an Integer Frequency Offset Estimation and Compensation for DOCSIS 3.1 Downstream

  • Bae, JaeHwui (Media Transmission Research Group, Media Research Division, Electronics and Telecommunications Research Institute) ;
  • Song, JinHyuk (Media Transmission Research Group, Media Research Division, Electronics and Telecommunications Research Institute) ;
  • Ra, Sang-Jung (Media Transmission Research Group, Media Research Division, Electronics and Telecommunications Research Institute) ;
  • Choi, Dong-Joon (Media Transmission Research Group, Media Research Division, Electronics and Telecommunications Research Institute) ;
  • Jung, Joon-Young (Media Transmission Research Group, Media Research Division, Electronics and Telecommunications Research Institute) ;
  • Hur, Namho (Media Transmission Research Group, Media Research Division, Electronics and Telecommunications Research Institute)
  • Received : 2017.01.18
  • Accepted : 2017.01.27
  • Published : 2017.02.28

Abstract

In this paper, we propose an integer frequency offset estimation and compensation method based on PLC preamble correlation in DOCSIS 3.1 Downstream system. The proposed method determines the PLC preamble subcarrier location recovered from PLC data and the one obtained from PLC preamble correlation. We showed the performance of PLC preamble detection in the received signal through the maximum value detection of PLC preamble correlation. Thus we can estimate and compensate for the integer frequency offset by computing the difference of PLC subcarrier locations.

Keywords

References

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