• 제목/요약/키워드: WSMP

검색결과 3건 처리시간 0.03초

RSU를 위한 WAVE 네트워킹 서비스 프로토콜 개발 (Development of WAVE Networking Service Protocol for RSU(Road-side Unit))

  • 주홍택;고강민;권동우
    • 한국통신학회논문지
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    • 제37권5B호
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    • pp.395-404
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    • 2012
  • 이 논문에서는 지능형 교통 시스템(ITS)를 위해 IEEE 1609.3 표준 문서에서 규정한 WAVE 네트워킹 서비스를 위한 표준 프로토콜 개발 결과를 제시한다. 그 중에서 특히 WAVE Management Entity(WME)와 WAVE Short Message Protocl(WSMP) 개발 결과에 중점을 두고 설명한다. 검증을 위해서 Traffic Management System(TMS)과 RSU 관리자의 개발 결과와 이를 이용한 교통사고 발생 시나리오에서의 TMS의 동작을 통해 개발 결과에 대한 검증 결과도 제시한다.

전산구조해석을 위한 고성능 직접적 연립방정식 해법의 개발 및 비교 연구 (Development and comparative study of high-performance direct solvers for computational structural mechanics)

  • 우성운;김정호
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 2004년도 가을 학술발표회 논문집
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    • pp.387-394
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    • 2004
  • In the structural analysis procedure using finite element technique, the performance of a linear equation solver is critical because the linear equation solving part spends most of the computing time for finite element analysis codes. However, most of researchers are still using inefficient profile-based direct solvers such as the band solver or the skyline solver. In this research, we introduce the multifrontal solution method as an efficient direct solution method for structural analysis, and show the efficiency and performance of the multifrontal solution method by comparing the performance of our own implementation of the multifrontal method with the band solver or the skyline solver. In addition, we also compare the performance of our solver with other implementations of the multifrontal method such as WSMP and MUMPS as well as commercial structural analysis packages such as ABAQUS and NASTRAN. Through the performance test results, the usefulness and efficiency of our domain-wise multifrontal solver for structural analysis is shown.

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차량 통신 기술을 위한 MLMEX 설계 및 구현 (The MLMEX Design and Implemention for Vehicle Communication Technology)

  • 이대식;이용권
    • 디지털산업정보학회논문지
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    • 제9권1호
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    • pp.103-110
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    • 2013
  • WAVE system is a vehicle communication technology. The system provides the services to prevent vehicle accidents that might occur during driving. Also, it is used to provide various services such as monitoring vehicle management and system failure. In this paper, we divide module that manages WAVE MAC state into a WSMP base MLME module and IP base module and we design and implement a parameter environment between WME module to manage the state of the WAVE system and MLMEX module to mange IP base of WAVE MAC therefore the date to be processed.Also, in order to verify the validity, we have carried out experiments to compare the speed of data processing by dividing data of 5Mbyte, 10Mbyte, 20Mbyte into the packets of 2KByte and 4KByte. Therefore, in WAVE system, the Parameter environments and data processing speed between WME and MLMEX module can be utilized in the various service of vehicle communication technology depending on the speed of data processing.