• Title/Summary/Keyword: WADM

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Characteristics of active optical ring network and performance evaluation in Bandwidth on Demand (능동형 광 링 네트워크의 특징 및 요구 대역폭에 따른 성능 분석)

  • Lee Sang-Wha;Song Hae-Sang
    • Journal of the Korea Society of Computer and Information
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    • v.10 no.6 s.38
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    • pp.209-218
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    • 2005
  • In this paper, we present an Active Optical Network(AON) . The AON uses the Dense Wavelength Division Multiplexing(DWDM) from optical communication access network of ring type, and will be able to provide the smoothly service in the Bandwidth on Demand by using DWDM. It supports the connection of the multiple wavelength and the Sub-Carrier from the optical gigabit ethernet switch. The Wavelength Add Drop Multiplexer(WADM) extracts a specific wavelength, and composes a node of the ring network. The specific wavelength becomes demultiplexing in the Sub-Carrier and it is distributed in the user The active connection of optical gigabit ethernet switch where the distribution of access network is started and access terminal connection equipment is possible. By the BoD from the AON it compares the buffer size which changes, and it analyzes. Also the Time delay of bit compares with the throughput of server The limit of amount of time is decided. Consequently it will be able to realize the dynamic use protocol and an efficient algorithm of the network.

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Simple Protocol for Dynamic Bandwidth Allocation in WDM/SCM-FTTH Access Network (WDM/SCM-FTTH 가입자망에서 효율적인 대역할당을 위한 프로토콜)

  • 조충건;박혁규;김영철;강동국;안계현;김영천
    • Proceedings of the IEEK Conference
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    • 2003.07a
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    • pp.73-76
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    • 2003
  • The capacity of backbone networks has largely kept pace with the tremendous of growth of Internet traffic. But there has been little progress in the access networks. In this paper, we introduce the access network that is able to offers high bandwidth and its simple protocol. The network architecture is basically multiple ring and use WDM(Wavelength Division Multiplexing), SCM (SubCarrier Multiplexing), and static WADM (Wavelenth Add/Drop Multiplexer) for simplicity, low cost, and offering high bandwidth.

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The Performance Analysis for the New Architecture of DWDM Network

  • Lee, Dong-Sun
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.33 no.6B
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    • pp.395-402
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    • 2008
  • Aggregate bandwidth required by the internet is expected to be explosively increased. To meet this anticipated need, an ultra high speed internet backbone transport network, capable of supporting up to a Tbps traffic capacity, is required. this thesis examines, through computer simulation and modeling, the technological requirements and assesses the performance analysis and feasibility for implementing ultra-high speed NGI backbone transport network fabric based on WDM technology. The study results are that C/L band EDFA spectral gains for ultra high speed DWDM have been improved from 2.61dB/1.5386dB to 0.03dB/0.096dB by proposed architecture.