Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Design of SC-FDE Transmission Structure to Cope with Narrow Band Interference

협대역 간섭신호 대응을 위한 SC-FDE 전송 구조 설계

  • Joo, So-Young (Department of Information and Communication Engineering, Hanbat National University) ;
  • Jo, Sung-Mi (Department of Information and Communication Engineering, Hanbat National University) ;
  • Hwang, Chan-Ho (Agency for Defense Development) ;
  • Jeong, Eui-Rim (Department of Information and Communication Engineering, Hanbat National University)
  • Received : 2017.12.24
  • Accepted : 2018.01.20
  • Published : 2018.05.31
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Abstract

In this paper, we propose a new single carrier - frequency domain equalization (SC-FDE) structure to cope with narrow band interference. In the conventional SC-FDE structure, when a high-power narrow band interference exists, channel estimation and data recovery is difficult. To relieve from this problem, this paper proposes a new SC-FDE frame structure to enable frequency-domain channel estimation in the environments that exist narrow band interference. Specifically, in the conventional method, the channel estimation is performed in time-domain first and from that, the frequency-domain channel is obtained by Fourier transform. In contrast, we proposed a new SC-FDE structure to enable frequency-domain channel estimation directly from received signals without time-domain channel estimation. The receiver performance improvement is verified through computer simulation. According to the results, the proposed technique can detect the signal with less than 2 dB loss compared with jammer-free environments, while the conventional method does not communicate with each other.

본 논문은 협대역 간섭신호에 대응하기 위한 새로운 SC-FDE 구조를 제안한다. 기존의 SC-FDE구조는 협대역 간섭신호가 발생했을 시 채널 추정이 어려워지고, 그로 인해 데이터 복원이 어려운 상황이 발생한다. 이러한 문제를 해결하기 위해 본 논문에서는 큰 전력의 협대역 간섭신호가 발생했을 때에도 주파수영역 채널추정이 가능한 새로운 SC-FDE 프레임 구조를 제안한다. 구체적으로 기존방식은 시간영역 채널추정을 먼저 수행한 후 푸리에변환을 통해 주파수 영역 채널을 추정하지만 본 논문은 곧바로 수신신호에서 주파수영역에서 채널추정이 가능하도록 새로운 SC-FDE의 구조를 제안하며 제안하는 구조의 성능 향상은 컴퓨터 모의실험을 통해 검증하였다. 모의실험 결과 재머의 크기가 수신신호의 크기와 동일한 환경에서 제안하는 방식은 재머가 없는 경우 대비 약 2 dB 이내의 손실로 수신이 가능하지만 기존의 방식은 통신이 불가능 하다.

Keywords

References

  1. A. Czylwik, "Comparison between adaptive OFDM and single carrier modulation with frequency domain equalization," IEEE Vehicular Technology Conference, vol. 2, pp. 865-869, May 1997.
  2. T. Hwang and Y. Li, "A bandwidth efficient block transmission with frequency-domain equalization.", IEEE 6th CAS Symposium Emerging Technologies, vol. 2, pp.433-436, June 2004.
  3. P. Yang, Y. Xiao, and Y. L. Guan, "Single-carrier SM-MIMO: A promising design for broadband large-scale antenna systems," IEEE Communications Surveys & Tutorials, vol. 18, no. 3, pp. 1687-1716, Feb. 2016. https://doi.org/10.1109/COMST.2016.2533580
  4. H. S. Eshwaraiah, and A. Chockalingam, "SC-FDMA for multiuser communication on the downlink," 2013 Fifth International Conference on Communication Systems and Networks (COMSNETS), pp. 1-7, Feb. 2013.
  5. H. Zhu, C. Fang, Y. Liu, C. Chen, M. Li, and X Shen, "You can jam but you cannot hide: defecding against jamming attacks for geo-location database driven spectrum sharing," IEEE J. Sel. Areas Commun., vol. 34, no. 10, pp. 2723-2737, Oct. 2016. https://doi.org/10.1109/JSAC.2016.2605799
  6. C. Shahriar et al., "PHY-layer resiliency in OFDM communications: A tutorial," IEEE Communications Surveys & Tutorials, vol. 17, no. 1, pp. 292-314, Mar. 2015. https://doi.org/10.1109/COMST.2014.2349883
  7. D. Falconer, S. L. Ariyavisitakul, A. Benyamin-Seeyar, and B. Eidson, "Frequency domain equalization for single-carrier broadband wireless systems," IEEE Commun. Magazine, vol.40, no.4, pp.58-66, Apr. 2002. https://doi.org/10.1109/35.995852
  8. S. Haykin, Adaptive Filter Theory, 4th edition, New Jersey, Prentice Hall, 2002.
  9. M. Bansal and L. Shricastava, "Performance Analysis of Wireless Mobile Adhoc Network with Different Types of Antennas," HSST, ISSN : 2508-9080, vol.3, no.1, pp. 33-44, Mar. 2017.
  10. E. -R. Jeong, H. H. Won, K. J. Yang, and B. S. Ahn, "A new multi-beam MVDR technique for removing interference signals in array antenna based GPS receivers, " Journal of the Korea Institute of Information and Communication Engineering, vol. 21, no. 3, pp. 491-498, Mar. 2017. https://doi.org/10.6109/JKIICE.2017.21.3.491
  11. J. Li, K. Liu, S. Lin, and K. Abdel-Ghaffar, "Algebraic quasi-cyclic LDPC codes: Construction, low error-floor, large girth and a reduced-complexity decoding scheme," IEEE Trans. Commun., vol. 62, no. 8, pp. 2626-2637, Aug. 2014. https://doi.org/10.1109/TCOMM.2014.2339329
  12. J. Berger, "L-Band Channel Modeling," IEEE/AIAA Integrated Communication, Navigation, & Surveillance Conference, Altimore, MD, pp. 1-3, May 2006.