• 제목/요약/키워드: Multiplexing

검색결과 1,861건 처리시간 0.025초

광대역통신망의 링크용량 설계 모형 및 알고리듬 (Model and Algorithm for Link Dimensioning of B-ISDN)

  • 주종혁
    • 산업경영시스템학회지
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    • 제22권51호
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    • pp.99-108
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    • 1999
  • B-ISDN link dimensioning is often known as a difficult problem because of the characteristics of Asynchronous Transfer Mode(ATM) such as various Quality of Services of different service requirements, and the statistical multiplexing resulting from virtual path/virtual circuit connections. In this paper, we propose a nonlinear integer optimization model for dimensioning B-ISDN considering the statistical multiplexing effects of virtual path connections(VPCs) and the modularity of resources allocated to a transmission link. The algorithm based on the simultaneous linear approximation technique as well as some numerical results will be also presented.

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재밍 환경 하에서 OFDM과 FMT 시스템의 성능 비교 (Performance Comparison of OFDM and FMT Systems under Jamming Environment)

  • 김종만
    • 한국군사과학기술학회지
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    • 제10권2호
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    • pp.100-106
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    • 2007
  • In this paper, the performance of OFDM(Orthogonal Frequency Division Multiplexing) and FMT(Filtered Multi-tone) Systems is compared under jamming environment. Two systems are multi-carrier systems to improve data rates. Through the comparison of two systems under jamming environment, the characteristics and strong/weak points of each system are analyzed.

Interference filter based stereoscopic 3D-LCD

  • Jorke, Helmut;Parger, Marc;Simon, Arnold;Schwarz, Sergej;Fritz, Markus
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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    • pp.441-442
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    • 2009
  • A wavelength multiplexing based stereoscopic 3D-LCD will be introduced. A new 120 Hz scanning RGB-backlight unit was developed. This backlight module was combined with a standard 120Hz LCD. The 3D-LCD based on interference filter glasses offers an outstanding channel separation and a wide viewing angl.

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Research on the Characteristics and Improvement of OADM that Uses 2 Steps FBG and MZI

  • Jang Woo-Soon
    • KIEE International Transactions on Electrophysics and Applications
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    • 제5C권6호
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    • pp.257-263
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    • 2005
  • WDM optical communication system requires wavelength division multiplexing, reverse multiplexing and optical filter. OADM is a device that can separate or combine specific wavelength of channel from the transmission line. This paper suggests OADM that uses 2 steps FBG based on MZI structure. The OADM that uses 2 steps FBG can minimize the system size and reduce the value of side lobe remarkably. The results obtained in this paper can be used for design and application of OADM that uses 2 steps FBG.

ATM스위치 시스템의 다중화 구조 및 버퍼 제어 (Multiplexing Structure and Buffer Control in an ATM Switching System)

  • 최성호
    • 한국정보통신학회논문지
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    • 제2권2호
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    • pp.181-186
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    • 1998
  • 본 논문에서는 고속의 내부 링크를 가진 ATM교환 시스템에서 다양한 인터페이스를 수용할 수 있는 가입자 정합장치의 다중화 구조를 살펴보고, 버퍼의 크기와 셀 지연을 분석하였다. 그리고 다중화 시 셀 손실을 최소화하고 새로운 ATC들을 수용할 수 있는 버퍼 제어 방법을 제안하였다.

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이중초점 렌즈를 이용한 Fractal-space 다중화 (Fractal-space Multiplexing using A Double-Focusing tens)

  • Kim, Soo-Gil;Hong, Sun-Ki
    • 한국산학기술학회:학술대회논문집
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    • 한국산학기술학회 2001년도 춘계학술대회 발표논문집
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    • pp.277-280
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    • 2001
  • We proposed a novel fractal-space multiplexing holographic memory system using moving window and double-focusing lens, which can eliminate crosstalk due to two neighboring moving window rows in the vertical direction of the conventional moving window holographic memory system, and demonstrated its feasibility through optical experiments.

A novel optical cell compressor for optical time division multiplexing system

  • 신서용;추광욱;원용협
    • 한국통신학회논문지
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    • 제22권3호
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    • pp.524-531
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    • 1997
  • A novel optical cell compressor for optical time division multiplexing system is presented. The compressor is capable of generating optically compressed very high bit-rate (possibly several tens of Gb/s) signals with minimum hardware. Contrast to the previously reported optical compressor, the compressor is mainly composed of passive optical devices and requires no synchronization among control signals in the process of compression, which results in simple implementation. We demonstrate a generation of optically compressed 6 Gb/s optical cells to confirm the fundamental operation of the compressor.

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High-Low 열정착 기법을 이용한 WDM 홀로그래픽 역다중화기의 설계 (Design of WDM holographic demultiplexer using a High-Low thermal fixing)

  • 박정호;전석희;정상혁;정재원;이권연;김남
    • 한국광학회:학술대회논문집
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    • 한국광학회 2003년도 하계학술발표회
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    • pp.110-111
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    • 2003
  • Holographic demultiplexer for the wavelength-division multiplexing optical communication system is proposed, and some experimental results are presented. To record the multiple holographic grating channels in the Fe:LiNbO$_3$ crystal, angular multiplexing and High-Low thermal fixing method are used.

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