Journal of Broadcast Engineering (방송공학회논문지)

The Korean Institute of Broadcast and Media Engineers (한국방송∙미디어공학회)
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Study on Synchronization Using Bootstrap Signals for ATSC 3.0 Systems

ATSC 3.0 시스템을 위한 부트스트랩 신호를 이용한 동기 방식 연구

  • Kim, Jeongchang (Division of Electronics and Electrical Information Engineering, Korea Maritime and Ocean University) ;
  • Kim, Hyeongseok (Division of Electronics and Electrical Information Engineering, Korea Maritime and Ocean University) ;
  • Park, Sung Ik (Broadcasting Systems Research Department, Electronics and Telecommunications Research Institute (ETRI)) ;
  • Kim, Heung Mook (Broadcasting Systems Research Department, Electronics and Telecommunications Research Institute (ETRI))
  • 김정창 (한국해양대학교 전자전기정보공학부) ;
  • 김형석 (한국해양대학교 전자전기정보공학부) ;
  • 박성익 (한국전자통신연구원 방송시스템연구부) ;
  • 김흥묵 (한국전자통신연구원 방송시스템연구부)
  • Received : 2016.09.12
  • Accepted : 2016.11.16
  • Published : 2016.11.30
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Abstract

In ATSC 3.0 systems, a bootstrap signal is located at the start of each frame. In this paper, we propose an initial synchronization scheme for ATSC 3.0 systems using the bootstrap signal. The bootstrap signal of ATSC 3.0 has several repetition patterns in the time domain. By utilizing the repetition patterns within the bootstrap, the proposed scheme can obtain an initial synchronization at the receiver. Also, simulation results show that the proposed scheme can obtain an initial synchronization at very low signal-to-noise ratios.

ATSC 3.0 시스템에서는 각 프레임의 시작에 부트스트랩 (bootstrap) 신호가 먼저 전송된다. 본 논문에서는 부트스트랩 신호를 이용하여 ATSC 3.0 시스템의 초기 동기를 획득하는 방법을 제시한다. ATSC 3.0의 부트스트랩 신호는 시간 영역에서 반복되는 구조를 가지며 제안하는 방법은 이러한 구조를 이용하여 수신기에서 초기 동기를 획득한다. 또한, 전산 실험 결과는 제안하는 알고리즘이 매우 낮은 신호 대 잡음비 (signal-to-noise ratio)에서도 초기 동기를 획득할 수 있음을 보여준다.

Keywords

References

  1. "A global approach to the future of terrestrial television broadcasting," Future of Broadcast television (FoBTV) Summit Joint Declaration, Nov. 11, 2011.
  2. ATSC Technology Group 3.0, "Call for proposals for ATSC 3.0 physical layer a terrestrial broadcast standard," Mar. 26, 2013.
  3. J. Kim, S. I. Park, and H. M. Kim, "A study on performance analysis for terrestrial cloud transmission systems," Journal of Broadcasting Engineering, vol. 20, no. 2, pp. 248-256, Mar. 2015. https://doi.org/10.5909/JBE.2015.20.2.248
  4. ATSC, "ATSC Standard: A/321, System Discovery and Signaling," Doc. A/321:2016, 23 March 2016.
  5. ATSC, "ATSC Standard: Physical Layer Standard (A/322)," Doc. A/322:2016, 7 Sept. 2016.
  6. K.-S. Ok, I.-W. Kang, H. J. Kim, Y. Kim, J. H. Seo, H. M. Kim, and H.-N. Kim, "Frame synchronization method by detecting bootstrap signal for ATSC 3.0", in Proc. of KICS 2015 Autumn, pp. 17-18, Nov. 2015.
  7. H. J. Kim, J.-Y. Lee, I.-W. Kang, K.-S. Ok, Y. Kim, J. H. Seo, H. M. Kim, and H.-N. Kim, "Estimation fractional-frequency offset in the ATSC 3.0 systems using bootstrap symbol", in Proc. of KICS 2016 Winter, pp.192-192, Jan. 2016.
  8. S. I. Park, H. M. Kim, Y. Wu, L. Zhang, N. Hur, and J. Kim, "Robust synchronization for the OFDM-based cloud transmission system," in Proc. of BMSB 2013, London, UK, June 2013.
  9. T. M. Schmidl and D. C. Cos, "Robust frequency and timing synchronization for OFDM," IEEE Trans. Commun., vol. 45, no. 12, pp. 1613-1621, Dec. 1997. https://doi.org/10.1109/26.650240
  10. J. C. Kim, S. I. Park, and H. M. Kim, "Initial timing acquisition algorithm for terrestrial cloud transmission systems," in Proc. of KICS, vol. 39C, no. 9, pp. 870-879, Sep. 2014.
  11. L. Polak and T. Kratochvil. "Simulation and measurement of the transmission distortions of the digital television DVB-T/H Part 3: Transmission in fading channels," Radioengineering, vol. 19, no. 4, pp.703-711, Dec. 2010.