한국통신학회논문지 (The Journal of Korean Institute of Communications and Information Sciences)

한국통신학회 (The Korean Institute of Commucations and Information Sciences)
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저속 주파수 도약 방식 위성 데이터링크에서 송수신 신호중첩 및 주파수 다이버시티 적용

A Slow Frequency Hopping Transmission Method using Carrier Superpositioning and Frequency Diversity for the Satellite Datalink

  • 투고 : 2011.10.28
  • 발행 : 2011.11.30
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초록

본 논문에서는 주파수 도약방식에서는 적용이 어려운 송수신 중첩통신 방식을 DSM형 중계기를 사용하는 위성 데이터링크에 적용하고 항재밍 성능 개선을 위해 잔여 주파수 자원을 주파수 다이버시티에 활용하는 방안을 제안 한다. 시뮬레이션을 통해 제안한 방식에 대한 항재밍 성능과 탐지회피 성능을 분석하였다. 항재밍 성능 분석 결과, 주파수 다이버시티 적용으로 데이터 통신시 18.5dB의 처리이득을 얻을 수 있으며, 500MHz 도약 방식에서 통신단말형태의 재머에 대해 4.8Mbps의 데이터 전송이 가능함을 확인하였다. 또한, 주파수 중첩에 의해 주파수 자원을 최대 2배까지 재사용 가능하며, 데이터 속도를 추정 할 수 있는 D&M 검출기를 대상으로 중첩을 하지 않았을 때 보다 2.5dB LPI 성능이 개선됨을 확인하였다.

In this paper, we propose a possibility of usage of carrier superpositioning scheme for a specific slow frequency hopping(SFH) transmission method for the satellite data link in which all of hopping carriers have to be synchronized to DSM transponder of our previous work and usage of frequency diversity in the saved frequency to overcome the SFH disadvantage against jammer. We have analyzed anti-jamming performance and LPI performance and confirmed that the proposed scheme can support data service with 18.5dB processing gain against the worst case partial band jamming and give 2.5dB gain in the LPI performance against D&M detector which can estimate the data rate of unknown signals.

키워드

참고문헌

  1. M. Denkberg, "Paired carrier multiple access(PCMA) for satellite communications," in proceedings of the Pacific Telecommunications Conference, Honolulu, Hawaii, USA, 1998.
  2. M. Ichikawa, T. Hara, M. Okada, H. Yamamoto and K. Andou, "Fast and accurate canceller on carrier superpositioning for VSAT frequency reuse," IEEE Wireless Communications and Networking Conference(WCNC), New Orleans, March 2005.
  3. Hiroyuki Kobashi, Mayumi Osato, Takao Hara, Minoru Okada, and Heiichi Yamamoto, "Signal cancellation for satellite frequency reuse by carrier superpositioning muti-level modulation," Proceedings of IEEE Symposium on Computers and Communications(ISSCC), 2006.
  4. S. Jayasimha and P. Jyothendar "Canceling echoes distorted by satellite transponders," National Conference on Communication, Indian Institure of Technology Delhi, Jan. 2006.
  5. Fei He, Xiang Chen, Jian Yan, Ming Zhao, Shidong Xhou, "A low overhead pilot aided parameter estimation scheme for asymmetric PCMA systems," International ICST Conference on Communications and Networking in China, Aug. 2010
  6. Craig Agne, Maj. Billy Cornell, Mark Dale, Ronald Kearns, and Fraklin Lee, "Shared spectrum bandwidth efficient satellite communications," IEEE Military Communications Conference, San Jose, Nov. 2010.
  7. Francesco Rossetto, "A comparison of different physical layer network coding techniques for the satellite environment," Advanced Satellite Multimedia Systems Conference and Signal Processing for Space Communications Workshop, 2010.
  8. 김기근, 임재성, "항재밍을 위한 위성데이터링크 웨이브폼 및 중계기 구조," 한국통신학회논문지, Vol. 36 No 11, 2011.
  9. Kazuaki Murota and Kenkichi Hirade, "GMSK Modulation for Digital Mobile Radio Telephony," IEEE Trans. Commun., Vol. Com-29, No. 7, pp. 1044-1050, July 1981.
  10. John G. Proakis and M Salehi, Digital Communications, Prentice Hall Inc.
  11. Hua Xiao and Amir H. Banihashemi, "Error Rate Estimation of Low-Density Parity-Check Codes on Binary Symmetric Channels Using Cycle Enumeration," IEEE Trans. Commun., Vol. 57, No. 6, June 2009.
  12. 김기근, 김도선, 최영균, "주파수 도약방식 위성통신 시스템의 항재밍 성능 분석," 한국통신학회논문지 Vol. 26 No 1, pp. 34-41, 2001.
  13. K.W Cheun, Spread spectrum communications, POSTECH PRESS.
  14. Robert F. Mills and Glenn E. Rescott, "A Comparison of Various Radiometer Detection Models," IEEE TRANS. ON Aerospace and Electronic Systems Vol. 32, No. 1, Jan. 1996.
  15. Harry Urkowitz, "Energy Detection of Unknown Deterministic Signals," Proceedings of the IEEE, Vol. 55, No. 4, pp. 523-531, Apr. 1967. https://doi.org/10.1109/PROC.1967.5573
  16. Clint R. Sikes, "Non-cooperative detection of frequency-hopped GMSK signals," Master Thesis, Air Force Institute of Technology Air Univ., 2006.
  17. D.E. Reed and M.A. Wickert, "Minimization of Detection of symbol rate spectral lines by Delay and Multiply Receivers," IEEE Trans. Comm, Vol. 57, No. 6, June 2009.
  18. Rovert F. Mills, "Detectability models and waveform design for multple access low-probability of intercept networks," Ph.D. dissertation. Montana State Univ. 1994.
  19. Barry K. Levitt, Unjeng Cheng, Andreas Polydoros, and Marvin K. Simon, "Optimum Detection of slow Frequency-Hopped Signals," IEEE Trans. Commun,, Vol. 42, No. 4, Apr. 1994.
  20. 김기근, 노홍준, 임재성, "Link-16 전송방식을 개선한 위성데이터링크 웨이브폼," Telecommunications Review, 제20권, 2호, 4월, 2010.