The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Durante aproximadamente a última década, a comunidade de pesquisa de ondas luminosas convergiu para uma visão arquitetônica ampla da rede central emergente em escala nacional. A visão tem sido a de uma rede transparente, reconfigurável e roteada por comprimento de onda, na qual os sinais se propagam da origem ao destino através de uma sequência de nós intermediários sem conversão optoeletrônica. Amplos benefícios foram previstos. Apesar da elegância moderada desta visão, está cada vez mais claro que, devido aos obstáculos de desempenho, custo, gestão e interoperabilidade multifornecedores que acompanham a transparência, as necessidades das comunicações civis não conduzirão a rede principal à transparência em qualquer escala nacional. . Em vez disso, irão levá-lo a uma forma “opaca”, com uma dependência crítica da conversão optoelectrónica através de transponders. Na verdade, as arquiteturas de rede baseadas em transponder não oferecem apenas amplos benefícios de transmissão e gerenciamento. Eles também tornam possível a rede na camada óptica, oferecendo aos nós sinais de interface padrão gerenciados e projetados para desempenho, que podem então ser reconfigurados para fins de provisionamento e restauração por elementos da camada óptica. Por causa disso, os desafios mais prementes nas redes de ondas luminosas estão mudando constantemente em direção aos mecanismos que serão usados para provisionamento e restauração. Entre estes estão mecanismos baseados em conexões cruzadas ópticas microusinadas em espaço livre. Descrevemos o progresso recente nesses novos dispositivos e as arquiteturas nas quais eles se enquadram, e resumimos as razões pelas quais eles parecem ser particularmente adequados para a tarefa de provisionar e restaurar redes opacas de núcleo de longa distância com comprimentos de onda múltiplos.
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Evan L. GOLDSTEIN, Lih Y. LIN, Robert W. TKACH, "Multiwavelength Opaque Optical-Crossconnect Networks" in IEICE TRANSACTIONS on Communications,
vol. E82-B, no. 8, pp. 1095-1104, August 1999, doi: .
Abstract: Over roughly the past decade, the lightwave-research community has converged upon a broad architectural vision of the emerging national-scale core network. The vision has been that of a transparent, reconfigurable, wavelength-routed network, in which signals propagate from source to destination through a sequence of intervening nodes without optoelectronic conversion. Broad benefits have been envisioned. Despite the spare elegance of this vision, it is steadily becoming clear that due to the performance, cost, management, and multivendor-interoperability obstacles attending transparency, the needs of civilian communications will not drive the core network to transparency on anything like a national scale. Instead, they will drive it to 'opaque' form, with critical reliance on optoelectronic conversion via transponders. Transponder-based network architectures in fact not only offer broad transmission and manageability benefits. They also make networking at the optical layer possible by offering to the nodes managed and performance-engineered standard-interface signals that can then be reconfigured for provisioning and restoration purposes by optical-layer elements. Because of this, the more pressing challenges in lightwave networking are steadily shifting towards the mechanisms that will be used for provisioning and restoration. Among these are mechanisms based on free-space micromachined optical crossconnects. We describe recent progress on these new devices and the architectures into which they fit, and summarize the reasons why they appear to be particularly well-matched to the task of provisioning and restoring opaque multiwavelength core long-haul networks.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e82-b_8_1095/_p
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@ARTICLE{e82-b_8_1095,
author={Evan L. GOLDSTEIN, Lih Y. LIN, Robert W. TKACH, },
journal={IEICE TRANSACTIONS on Communications},
title={Multiwavelength Opaque Optical-Crossconnect Networks},
year={1999},
volume={E82-B},
number={8},
pages={1095-1104},
abstract={Over roughly the past decade, the lightwave-research community has converged upon a broad architectural vision of the emerging national-scale core network. The vision has been that of a transparent, reconfigurable, wavelength-routed network, in which signals propagate from source to destination through a sequence of intervening nodes without optoelectronic conversion. Broad benefits have been envisioned. Despite the spare elegance of this vision, it is steadily becoming clear that due to the performance, cost, management, and multivendor-interoperability obstacles attending transparency, the needs of civilian communications will not drive the core network to transparency on anything like a national scale. Instead, they will drive it to 'opaque' form, with critical reliance on optoelectronic conversion via transponders. Transponder-based network architectures in fact not only offer broad transmission and manageability benefits. They also make networking at the optical layer possible by offering to the nodes managed and performance-engineered standard-interface signals that can then be reconfigured for provisioning and restoration purposes by optical-layer elements. Because of this, the more pressing challenges in lightwave networking are steadily shifting towards the mechanisms that will be used for provisioning and restoration. Among these are mechanisms based on free-space micromachined optical crossconnects. We describe recent progress on these new devices and the architectures into which they fit, and summarize the reasons why they appear to be particularly well-matched to the task of provisioning and restoring opaque multiwavelength core long-haul networks.},
keywords={},
doi={},
ISSN={},
month={August},}
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TY - JOUR
TI - Multiwavelength Opaque Optical-Crossconnect Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 1095
EP - 1104
AU - Evan L. GOLDSTEIN
AU - Lih Y. LIN
AU - Robert W. TKACH
PY - 1999
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E82-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 1999
AB - Over roughly the past decade, the lightwave-research community has converged upon a broad architectural vision of the emerging national-scale core network. The vision has been that of a transparent, reconfigurable, wavelength-routed network, in which signals propagate from source to destination through a sequence of intervening nodes without optoelectronic conversion. Broad benefits have been envisioned. Despite the spare elegance of this vision, it is steadily becoming clear that due to the performance, cost, management, and multivendor-interoperability obstacles attending transparency, the needs of civilian communications will not drive the core network to transparency on anything like a national scale. Instead, they will drive it to 'opaque' form, with critical reliance on optoelectronic conversion via transponders. Transponder-based network architectures in fact not only offer broad transmission and manageability benefits. They also make networking at the optical layer possible by offering to the nodes managed and performance-engineered standard-interface signals that can then be reconfigured for provisioning and restoration purposes by optical-layer elements. Because of this, the more pressing challenges in lightwave networking are steadily shifting towards the mechanisms that will be used for provisioning and restoration. Among these are mechanisms based on free-space micromachined optical crossconnects. We describe recent progress on these new devices and the architectures into which they fit, and summarize the reasons why they appear to be particularly well-matched to the task of provisioning and restoring opaque multiwavelength core long-haul networks.
ER -