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

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Tile Based Frequency Hopping Chirp Spread Spectrum Technique

타일 기반 주파수 도약 첩 대역 확산 기법

  • Received : 2019.05.13
  • Accepted : 2019.06.15
  • Published : 2019.08.31
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Abstract

In this paper, we propose the Tile Based Frequency Hopping - Chirp Spread Spectrum(TBFH-CSS) technique, which has excellent Low Probability of Intercept(LPI)/Anti-Jamming(AJ) performance. Conventional Frequency Hopping - Chirp Spread Spectrum(FH-CSS) technique uses only single chirp signal, that makes the follower jammer easy to find and jam. However, proposed TBFH-CSS uses various kind of chirp signals which are generated according to the structure of basis tile, it is composed the basis time unit and the basis bandwidth unit. The TBFH-CSS signal has variety signal period and signal bandwidth. Therefore, the follower jammer hard to find and difficult to jam the TBFH-CSS signal. We analysis the LPI/AJ performance of the TBFH-CSS technique when the follow jamming attack exist and compared with the performance of the conventional FH-CSS technique. From the analysis, we can see the proposed TBFH-CSS technique has better LPI/AJ performance than conventional technique.

본 논문에서는 저피탐(LPI)/항재밍(AJ) 성능이 우수한 타일 기반 주파수 도약 첩 대역 확산(TBFH-CSS) 기법을 제안한다. 기존 주파수 도약 첩 확산(FH-CSS) 기법은 신호 주기와 대역폭이 일정한 단일 첩 신호로 주파수 도약을 수행하여 추적 재머가 쉽게 신호를 탐지하고 재밍 공격을 할 수 있다. 제안한 TBFH-CSS 기법은 단위 시간과 단위 대역폭으로 이루어진 기준 타일의 조합으로 첩 신호를 생성하여 신호 주기와 대역폭이 일정하지 않아 추적 재머가 신호를 탐지하고 효과적으로 재밍하기 어렵다. 추적 재머를 이용한 재밍 공격 시 기존 FH-CSS 기법과 제안한 TBFH-CSS 기법의 저피탐/항재밍 성능을 비교하여 TBFH-CSS 기법이 저피탐/항재밍 성능이 우수함을 확인하였다.

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References

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