The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Effective GSM Interference Cancelling Techniques Using Digital Filter for the Collocated GSM and DVB-H Terminal

GSM과 DVB-H의 복합 단말에서 디지털 필터를 적용한 GSM 간섭 신호 제거 기법

  • Park, Pyung-Joo (Information and Telecommunication Engineering, Korea Aerospace University) ;
  • Park, Yong-Woon (R&D Institute/WS Lab.(SoC), Samsung Electro-Mechanics Co., Ltd.) ;
  • Seo, Myung-Hwan (Information and Telecommunication Engineering, Korea Aerospace University) ;
  • Lee, Byung-Seub (Information and Telecommunication Engineering, Korea Aerospace University)
  • 박평주 (한국항공대학교 통신공학과) ;
  • 박용운 (삼성전기중앙연구소) ;
  • 서명환 (한국항공대학교 통신공학과) ;
  • 이병섭 (한국항공대학교 통신공학과)
  • Published : 2009.07.31
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Abstract

The phenomenon degrading reception performance of DVB broadcasting signal is caused by collocation of plural communication modules in the GSM-900 cellular phone with a built-in DVB-H receiver. This paper offers how to improve performance of the DVB-H receiver by applying digital filter that is using DSP techniques to cancel GSM signal interfering to the DVB-H receiver which is collocated in a single user's GSM terminal. In the demodulation part of the DVB-H receiver, the DVB reception performance can be greatly improved by removing interference components of GSM signal, which is flowed with DVB signal, to the noise cancellation filtering algorithm using difference of characteristics between GSM modulated signal and OFDM signal.

DVB-H 수신기가 내장된 GSM 900 방식의 휴대전화 단말은 두 개의 통신 시스템이 공존하고 있어 GSM 신호의 간섭으로 인해 DVB 방송 신호의 수신 성능이 저하되는 현상이 발생한다. 본 논문에서는 GSM과 DVB-H 복합 단말에서 DVB-H 수신기로 간섭을 일으키는 GSM 신호를 제거하기 위해 DSP 기법을 이용한 디지털 필터를 적용하여 DVB-H 수신기의 성능을 높일 수 있는 시스템을 제안한다. DVB-H 수신기의 복조단에서 GSM 변조 선호와 OFDM 선호의 특성이 서로 다른 점을 이용한 잡음 제거 필터링 알고리즘으로 DVB 신호와 함께 유입된 GSM 신호의 간섭 성분을 제거함으로써 DVB 수신 성능을 크게 향상시킬 수 있다.

Keywords

References

  1. GSM Association, "GSM world statistics", http://www.gsmworld.com/newsroom/market-data/market_data_summary.htm, 2007, Retrieved on 2009-01
  2. European Telecommunications Standards Institute (ETSI), "Digital Video Broadcasting(DVB); DVB-H implementation guidelines", ETSI TR 102 377, Nov. 2005
  3. EICTA MBRAI, "Mobile and portable DVB-T/H radio access", EICTA/TAC/MBRAI-02-16
  4. A Kampe, H. Olsson, "A DVB-H receiver architecture", NORCHIP Conference, 2005
  5. European Telecommunications Standards Institute (ETSI), "Digital Video Broadcasting(DVB); Implementation guidelines for DVB terrestrial services; Transmission aspects", ETSI EN 101 190, Jul. 2004
  6. Libo Huang, W. L. Schroeder, and P. Russer, "Coexistence of an electrically tunable DVB-H antenna with the GSM transmitter in a mobile phone", Microwave Symposium, 2007 https://doi.org/10.1109/MWSYM.2007.380376
  7. D. Lo Hine Tong, R. Lababidi, F. Baron, A. Louzir, B. Jarry, "Low-pass active filter enabling DVB-H/T and GSM standard coexistence", Microwave Symposium, 2007 https://doi.org/10.1109/MWSYM.2007.380237
  8. 최은호, "디지탈 비디오 방송 수신 모듈 및 이를 갖는 이동통신단말기", 삼성전기주식회사, 특허출원 10-2005-0047424
  9. European Telecommunications Standards Institute (ETSI), "GSM standard for digital cellular telecommunications system(Phase 2+); Modulation(GSM 05.04 version 8.1.2 release 1999)", ETSI EN 300 959, Feb. 2001
  10. E. C. Ifeachor, B. W. Jervis, Digital Signal Processing, 2nd Ed., Prentice Hall, Englewood Cliffs, NJ, 2002
  11. Simon Haykin, Adaptive Filter Theory, 4th Ed., Prentice Hall, 2002
  12. R. J. Schilling, S. L. Harris, Fundamentals of Digital Signal Processing, Thomson, 2005
  13. D. T. M. Slock, "On the convergence behavior of the LMS and the normalized LMS algorithms", Signal Processing, IEEE Transactions on, pp. 2811-2825, Sep. 1993
  14. F. Beaufays, "Transform-domain adaptive filters: an analytical approach", Signal Processing, IEEE Trans., pp. 422-431, Feb. 1995
  15. J. J. Shynk, "Frequency-domain and multirate adaptive filtering", Signal Processing Magazine, IEEE, pp. 14-37, Jan. 1992
  16. R. C. Bilcu, P. Kuosmanen, and K. Egiazarian, "A transform domain LMS adaptive filter with variable step-size", Signal Processing Letters, IEEE, pp. 51-53, Feb. 2002
  17. European Telecommunications Standards Institute (ETSI), "Digital Video Broadcasting(DVB); Framing structure, channel coding and modulation for digital terrestrial television", ETSI EN 300 744, Jan. 2001