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Link-16 네트워크 운용성능분석을 위한 시뮬레이터 설계 및 구현
이상태,위성혁,김영승,이정식,지승배,이승찬,Lee, Sangtae,Wi, Sounghyouk,Kim, Youngseung,Lee, Jungsik,Jee, Seungbae,Lee, Seungchan 한국시뮬레이션학회 2019 한국시뮬레이션학회 논문지 Vol.28 No.4
Link-16 is a data link that provides joint interoperability to the US Navy, Air Force and NATO. Currently, the military relies entirely on foreign SW and tools for test environment, tactical simulation training and interoperability verification test for Link-16 operation. Therefore, it is necessary to develop Link-16 based operation environment test tool. In this paper, Link-16 network operational performance analysis simulator was developed by analyzing the function of Link-16 foreign tools. It also implements the SIMPLE standard interface for interworking with foreign SW and tools. The functional model for Link-16 network operation performance analysis consists of pre-analysis, real-time operational analysis, and post-analysis functional model. Each functional model test was performed through SIMPLE interworking with foreign SW and tools. Link-16 network operation performance analysis If we replace foreign SW through simulator, we can perform tactical training, network design verification and operation (scenario) verification for our military. Link-16은 미 해군 및 공군, NATO에 합동 상호운용성을 제공하는 데이터링크로 국내 무기체계에서도 운용되고 있다. 현재 Link-16 운용을 위한 시험환경, 전술모의훈련 및 상호운용성 검증 시험은 해외 SW 및 도구를 통해 전적으로 의존하고 있다. 따라서 Link-16 기반의 운용환경시험 도구의 개발이 필요하다. 본 논문에서는 Link-16 해외도구 기능 분석을 통해 Link-16 네트워크 운용성능분석 시뮬레이터를 개발하였다. 또한 연동을 위한 SIMPLE 표준 인터페이스를 구현하였다. Link-16 네트워크 운용성능분석을 위한 기능모델은 사전분석, 실시간 운용분석, 사후분석 기능모델로 구성된다. 각 기능모델에 대한 시험은 해외 SW 및 도구와 SIMPLE 연동을 통해서 수행하였다. Link-16 네트워크 운용성능분석 시뮬레이터를 통해 해외 SW를 대체하게 된다면 우리 군에 맞는 전술훈련 및 네트워크 운용성능분석, 운용(시나리오)검증을 수행할 수 있을 것이다.
멀티코어 환경에서 SEDA 기반 메시지 처리기의 수행함수 특성을 고려한 쓰레드 매핑 기법
강희은(Heeeun Kang),박성용(Sungyong Park),이윤정(Younjeong Lee),지승배(Seungbae Jee) Korean Institute of Information Scientists and Eng 2017 정보과학회논문지 Vol.44 No.1
A message processor is server software that receives various message formats from clients, creates the corresponding threads to process them, and lastly delivers the results to the destination. Considering that each function of an SEDA-based message processor has its own characteristics such as CPU-bound or IO-bound, this paper proposes a thread-mapping strategy called FC-TM (function-characteristic aware thread mapping) that schedules the threads to the cores based on the function characteristics in multi-core environments. This paper assumes that message-processor functions are static in the sense that they are pre-defined when the message processor is built; therefore, we profile each function in advance and map each thread to a core using the information in order to maximize the throughput. The benchmarking results show that the throughput increased by up to a maximum of 72 % compared with the previous studies when the ratio of the IO-bound functions to the CPU-bound functions exceeds a certain percentage.
MIDS LVT 플랫폼 확장을 고려한 프레임워크 기반 에뮬레이터 설계 및 구현
이상태(Sangtae Lee),김종서(Jongseo Kim),위성혁(Sounghyouk Wi),김태권(Taegwon Lee),지승배(Seungbae Jee),이승찬(Seungchan Lee) Korean Institute of Information Scientists and Eng 2021 정보과학회논문지 Vol.48 No.1
MIDS LVT is communication equipment mounted with Link-16-based weapon systems to provide the Link-16 operating environment between weapon systems. Currently, the military operates the MIDS LVT BU1, but it will be changed to the BU2 and JTRS according to the performance improvement. The communication interface, message data format, and message composition of the MIDS LVT are different depending on the platform family (BU1/BU2/JTRS) and type (A,D,J). In this paper, we propose a framework based emulator design and implementation method that considers the MIDS LVT platform extension to improve these problems. In consideration of the quality attributes of the sw architecture, we designed a common based framework for modifiability, reusability, and extensibility. The MIDS LVT emulator comprises the MIDS LVT emulator processing, link interface processing, and monitoring tool. The MIDS LVT emulator was implemented by deriving and improving functions through the analysis of the functions of the previously developed overseas tools. Through the development of the MIDS LVT emulator, it can be used to develop and verify the developed Link-16 host system.