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

  • 제22권1호
  • /
  • Pages.211-220
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  • 2018
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  • 2234-4772(pISSN)
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  • 2288-4165(eISSN)
한국정보통신학회 (The Korea Institute of Information and Commucation Engineering)
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링크암호 환경에서 이미지 데이터와 잡음의 영향

Analysis of Noise Sensitivity due to Image Wireless Transmission

  • Kim, KiHwan (Department of Ubiquertous IT, Dongseo University) ;
  • Kim, HyeongRag (Department of Information Technology and Electronics, Pohang University) ;
  • Lee, HoonJae (Department of Information and Communication Engineering, Dongseo University) ;
  • Ryu, Young-Jae (ADD)
  • 투고 : 2017.09.14
  • 심사 : 2017.11.22
  • 발행 : 2018.01.31
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⟨ 이전 논문 다음 논문 ⟩

초록

CCSDS가 제시하는 표준 데이터 링크 계층 암호화는 HDLC 프레임을 입력받고 이를 AES 알고리즘을 사용하여 암호화하는 구조를 가진다. 하지만 CCSDS의 표준 방식은 불안정한 채널을 통해 노이즈 간섭이 발생하는 경우 수신측 스스로 재동기 요청할 수 없는 구조를 가지고 있다. SES Alarmed는 CCSDS의 링크 암호화와 유사한 동작 구조에 추가적으로 수신측에서 오류를 감지하고 재동기 요청을 수행할 수 있는 구조를 가지고 있다. SES Alarmed와 관련된 논문은 최적의 임계범위를 발견하는 것과 채널 노이즈에 따른 데이터 손상을 확인하는 것에 목적을 두었다. 본 논문에서는 SES Alarmed에서 암호 동기 코드를 제외한 HDLC 프레임을 연속으로 임의의 임계값을 초과할 경우 재동기 과정을 낮추는 것에 초점을 두었다. 이에 HDLC 프레임 순서를 변경하고 SES Alarmed를 사용한 결과를 제안 및 비교한다.

The standard data link layer encryption provided by CCSDS has a structure that encodes HDLC frame into it using an AES algorithm. However, CCSDS is standard method has a structure in which the receiving side cannot request a re-activation when noise interference occurs over an unstable channel. SES Alarmed has a structure that enables the receiving side to additionally detect errors and perform re-activation requests in an operational structure similar to that of link encryption in CCSDS. The SES Alarmed related paper was intended to identify the optimum range of thresholds and identify data corruption due to channel noise. In this paper, the focus was on reducing the re-activation process if the HDLC frame, excluding the password Sync code, consistently exceeds any threshold levels. The HDLC frame order was changed and the results of using SES Alarmed were proposed and compared.

키워드

참고문헌

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