The Journal of the Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회논문지)

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
권호 표지

Performance of Spectrum Sensing for ATSC DTV Signals

ATSC DTV 신호 검출 성능

  • Received : 2010.03.29
  • Published : 2010.06.30
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Abstract

In this paper, we analyze and simulate the performance of a pilot signal detection algorithm based on fast Fourier transform (FFT) for several system parameters in order to detect advanced television system committee digital television (ATSC DTV) signals. Requirements for detecting DTV signals are analyzed. And the detection performance is compared according to sensing frequency and time. Form the simulation results, it is confirmed that the signal detection performance increases as the sensing frequency rises. The results of this paper can be applied for implementing cognitive radio (CR) systems in the frequency band of DTV signals.

본 논문은 ATSC DTV (advanced television system committee digital television) 신호를 검출하기 위해 고속 퓨리에 변환 (FFT : fast Fourier transform) 기반의 파일럿 신호를 검출하는 알고리즘의 성능을 파라미터를 변화시켜가면서 분석하였다. DTV 신호를 검출하기 위한 요구사항을 분석하였으며, 센싱 회수 및 시간에 따라서 성능을 비교하였다. 실험 결과 센싱 횟수가 증가할수록 신호 검출 성능이 향상되는 것을 확인할 수 있었다. 본 논문의 결과는 DTV 주파수 대역의 인지 라디오 (CR : cognitive radio) 시스템을 구현하는데 참고자료로 활용될 수 있다.

Keywords

References

  1. I. F. Akyildiz, W. Y. Lee, M. Vuran, and S. Mohanty, "Next generation/dynamic spectrum access/cognitive radio wireless networks: a survey," Computer Networks, vol. 50, no. 13, pp. 2127–2159, May 2006. https://doi.org/10.1016/j.comnet.2006.05.001
  2. J. Y. Kim. Cognitive Radio Communications, Seoul, Gyobo Publishers, 2008.
  3. J. Mitola III and G. Q. Maguire Jr., "Cognitive radio: making software radios more personal," IEEE Personal Commun., vol. 6, no. 4, pp. 13−18, Aug. 1999. https://doi.org/10.1109/98.788210
  4. S. Haykin, "Cognitive radio: brain-empowered wireless communications," IEEE J. Select. Areas Commun., vol.23, no.2, pp.201-220, Feb. 2005. https://doi.org/10.1109/JSAC.2004.839380
  5. M. Ghosh, "Text on FFT-based pilot sensing-for informative annex on sensing techniques," IEEE 802.22-07/0298r1, Jul. 2007.
  6. H. Chen and W. Gao, "Text on cyclostationary feature detector-for informative annex on sensing techniques," IEEE 802.22-07/0283r0, Jun. 2007.
  7. W. Gao, H. Chen, M. Ghosh, and S. Shellhammer, "Text on ATSC signature sequence correlation-for informative annex on sensing techniques," IEEE 802.22-07/0268r2.
  8. FCC, ET Docket No. 08-260, "Second report and order and memorandum opinion and order," Nov. 2008.
  9. J. C. McKinney and R. Hopkins, "ATSC digital television standard," Advanced Television Systems Committee, Sep. 1995.
  10. G. Minkler and J. Minkler, CFAR, Magellam Book Company, 1990.
  11. IEEE 802.22 draft standard, "IEEE P802.22TM/D0.3 Draft Standard for Wireless Regional Area Networks," doc. no. 22-07-0086-01-0000, May 2007.