방송공학회논문지 (Journal of Broadcast Engineering)

  • 제23권2호
  • /
  • Pages.293-301
  • /
  • 2018
  • /
  • 1226-7953(pISSN)
  • /
  • 2287-9137(eISSN)
한국방송∙미디어공학회 (The Korean Institute of Broadcast and Media Engineers)
권호 표지
DOI QR코드

DOI QR Code

ISDB-T 풀세그 TV 수신기 이동 성능 평가

Mobile Performance Evaluation of ISDB-T Full-Segment TV Receiver

  • 구영모 (인하공업전문대학 정보통신과)
  • 투고 : 2018.02.02
  • 심사 : 2018.03.03
  • 발행 : 2018.03.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

일본향 디지털 지상파 TV 규격인 ISDB-T는 OFDM 기술을 기반으로 하여 6MHz인 대역폭을 13개의 세그먼트로 나누고 그중에서 12개의 세그먼트(풀세그)는 고정형 수신기를 위한 고화질 방송에 할당하고 1개의 세그먼트(원세그)는 이동형 수신기를 위한 모바일 방송에 할당한다. 원세그는 QPSK 변조를 사용하여 고속 이동 중 수신이 가능하지만 데이터율이 낮아 대화면의 모바일 기기에는 그 화질이 크게 떨어지고, 풀세그는 고화질을 지원하지만 64QAM 변조를 사용하므로 고속 이동 수신이 어렵다. 본 논문에서는 반송파 간 간섭 제거 기술, 고속 채널 추정 기술, 안테나 다이버시티 기술을 ISDB-T 풀세그 수신기에 적용하여 그 이동 수신 성능을 평가하고 가능성을 확인한다.

In ISDB-T, which is Japanese digital terrestrial TV specification based on OFDM technology, 6MHz bandwidth is divided into 13 segments. Twelve segments (full-seg) are used for high definition broadcasting for fixed receivers and one segment (one-seg) for mobile receivers. Though one-seg supports high speed mobility by using QPSK modulation, it is not suitable for large display mobile devices because of its low data rate. Full-seg using 64QAM modulation also suffers from its low mobile performance. In this paper, mobile performance of ISDB-T full-seg receiver is evaluated by applying sub-carrier interference removing scheme, high speed mobile channel estimation scheme and antenna diversity scheme.

키워드

참고문헌

  1. ETSI, Digital Video Broadcasting (DVB); Framing structure, channel coding and modulation for digital terrestrial television, ETSI EN 300 744 V1.5.1.
  2. ETSI, Digital Video Broadcasting (DVB); Framing structure, channel coding and modulation for a second generation digital terrestrial television broadcasting system (DVB-T2),
  3. ARIB, Transmission System for Digital Terrestrial Television Broadcast, ARIB STD-B31.
  4. ATSC, Physical Layer Protocol (A/322)
  5. A.A. Hutter, R. Hasholzner, and J.S. Hammerschmidt, "Channel estimation for mobile OFDM systems," Proc. IEEE VTC''99-Fall, Sept. 1999.
  6. P. Robertson and S. Kaiser, "The effects of Doppler spreads in OFDM(A) mobile radio systems," Proc. IEEE VTC''99-Fall, pp. 329-333, Sept. 1999.
  7. ETSI Standard: TS 101 191 V1.4.1, Digital Video Broadcasting (DVB); DVB mega-frame for Single Frequency Network (SFN) synchronization.
  8. Y. M. Gu, "Inter-carrier Interference Reduction Method Using Mask in a Fast Moving OFDM receiver," Journal of Broadcast Engineering Vol. 18, No. 3, May 2013.
  9. Y. M, Gu, "A Channel Estimation Scheme for OFDM receiver in a Fast Mobile SFN Channel," Journal of Broadcast Engineering Vol. 21, No. 4, July 2016.
  10. W. G. Jeon and K. H. Chang, "An equalization technique for orthogonalfrequency-division multiplexing systems in time-variant multipath channels," IEEE Trans. Commun., vol. 47, pp. 27-32, Jan. 1999. https://doi.org/10.1109/26.747810
  11. W.-S. Hou and B.-S. Chen, "ICI cancellation for OFDM communication systems in time-varying multipath fading channels," IEEE Trans. Wireless Commun., vol. 4, no. 5, pp. 2100-2100, Sept. 2005. https://doi.org/10.1109/TWC.2005.853837
  12. Y. Mostofi and D. Cox, "ICI mitigation for mobile OFDM receivers," Proc. IEEE 38th ICC, Anchorage, Alaska, May 2003.
  13. V. Fischer, A. Kurpiers, and D. Karsunke, "ICI reduction method for OFDM systems," 8th International OFDM-Workshop 2003 (InOWo'03), Hamburg, Conference Proceedings.
  14. Y. Zhao and A. Huang, "A novel channel estimation method for OFDM mobile communications systems based on pilot signals and transform domain processing," in Proc. IEEE 47th Vehicular Technology Confrerence, Phoenix, USA, pp.2089-2093, May 1997.
  15. 3GPP2: C.R1002-0 v1.0, CDMA2000 evaluation methodology
  16. COST207 (under the direction of M. Failly), "Digital land mobile radio communications (final report)," Commission of the European Communities, Directorate General Telecommunications, Information Industries and Innovation, 1989, pp. 135-147.
  17. K. Sakuma and K. Kanno , "Digital TV Tuner for Automotive applications TU-DTV100," Matsushita Technical Journal Vol. 52, No. 2, pp. 39-44, Apr. 2006
  18. Y. Narikiyo, M. Okano and M. Takada, "Performance of ISDB-T HDTV Mobile Reception Using 8-branch Space Diversity with Iterative Decoding," The Journal of The Institute of Image Information and Television Engineers, Vol. 66, No. 7, J260-J266, June 2012 https://doi.org/10.3169/itej.66.J260
  19. EICTA MBRAI 2.0 "Mobile and portable DVB-T/H radio access - Part 2 interface conformance testing," pp. 43-46.