DOI QR코드

DOI QR Code

공중 전술 데이터링크에서 상황인식 공유를 위한 우선순위 기반 매체접속제어와 부하분산 기법

Priority Based Medium Access Control and Load Balancing Scheme for Shared Situational Awareness in Airborne Tactical Data Link

  • 투고 : 2016.07.19
  • 심사 : 2016.09.27
  • 발행 : 2016.10.31

초록

현대전이 네트워크 중심전으로 변화함에 따라 아군 플랫폼끼리 상황인식 정보를 공유하는 능력은 작전임무 수행을 위한 핵심 능력이 되었다. 공중 환경에서 상황인식 공유를 위하여 Link-16과 같은 전술 데이터링크를 이용하는데, 슬롯 할당이 동적으로 되지 않거나 동적으로 할당된 슬롯의 개수를 변경하지 못하는 문제가 존재하였다. 또한 슬롯할당을 받지 못한 노드가 있는 경우 상황인식 공유의 필요에도 불구하고 유한한 타임 슬롯 자원의 한계로 이를 공유하지 못하여 상황인식 능력을 향상시키지 못하는 문제가 존재하였다. 본 논문에서는 TDMA (time division multiple access)와 랜덤액세스가 혼합된 구조를 활용하여 동적인 슬롯할당 및 할당 슬롯의 변화를 수용하며, 사용 가능한 슬롯이 소진된 경우에도 일부 상황인식 공유가 가능한 기법 및 슬롯 요청이나 메시지 전송 집중에 다른 슬롯 할당 지연시간을 감소를 위한 서브프레임간 부하 분산 기법을 제안한다.

As modern warfare has changed into network centered, the ability to share situational awareness among allies become a core competency for performing operational missions. In an airborne environment, it uses a tactical data link such as Link-16 for shared situational awareness. There exist problems when it shares situational awareness over the existing data link that can not allocate slots dynamically or that can not change the number of a slot to be allocated. In addition, there was a problem that can not share this failure so that failed to improves situation awareness because of finite time slot resources. In this paper, we accommodate dynamic slot allocation and changes of slot allocation with mixed structure of TDMA (time division multiple access) and random access. We propose a technique that can be used when available slots are exhausted, and a load balancing method to prevent slot allocation delay when slot requesting or message sending is concentrated on a single subframe.

키워드

참고문헌

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피인용 문헌

  1. 작전임무그룹 지원을 위한 Zone 기반 무선 Link-K 네트워크 구조 및 라우팅 vol.42, pp.1, 2016, https://doi.org/10.7840/kics.2017.42.1.108
  2. To Improve the Real-Time Performance of Airborne Data Link Communication System vol.2021, pp.None, 2021, https://doi.org/10.1155/2021/5558089