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".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Este artigo propõe um switch ATM multiestágio sem bloqueio baseado em um mecanismo de resequenciamento hierárquico de células (HCR) e interconexão WDM de alta velocidade e relata seu estudo de viabilidade. Em um switch ATM multiestágio, o roteamento baseado em células é eficaz para tornar o switch não bloqueador, porque todo o tráfego é distribuído aleatoriamente em estágios de comutação intermediários. Porém, devido às condições de múltiplos caminhos, as células podem chegar fora de sequência na saída da malha de comutação. Portanto, o resequenciamento deve ser realizado em cada saída do estágio de comutação final ou na saída de cada estágio de comutação. O switch HCR básico executa o resequenciamento de células de maneira hierárquica ao alternar células de linhas de entrada para linhas de saída. Como resultado, a sequência de células em cada saída do comutador HCR básico é recuperada. Um switch HCR de vários estágios é construído interconectando as linhas de entrada e de saída desses switches HCR básicos de maneira hierárquica. Portanto, a sequência de células em cada saída final da malha de comutação é conservada de maneira hierárquica. Desta forma, o roteamento baseado em células torna-se possível e um switch ATM multiestágio com o mecanismo HCR pode atingir 100% de rendimento sem quaisquer técnicas internas de aceleração. Como um switch HCR multiestágio de grande capacidade precisa de um grande número de interconexões de sinal de alta velocidade, é necessário um avanço na tecnologia de interconexão óptica compacta. Portanto, este artigo propõe um sistema de interconexão WDM com um filtro de guia de onda com roteador óptico (AWGF) que interconecta elementos de switch de alta velocidade de forma eficaz e relata seu estudo de viabilidade. Nesta arquitetura, cada elemento de comutação é endereçado por um comprimento de onda único. Como resultado, um switch em um estágio anterior pode transmitir uma célula para qualquer switch no próximo estágio, selecionando apenas o comprimento de onda de transmissão da célula. Para tornar este sistema viável, desenvolvemos um roteador óptico AWGF com espaçamento de canal amplo e módulos transmissores e receptores ópticos compactos de 10 Gbit/s com um laser compacto de feedback distribuído por eletroabsorção de alta potência (EA-DFB) e um novo circuito de decisão de bits . Usando esses módulos, confirmamos a operação estável da interconexão WDM. Esta arquitetura de switch e sistema de interconexão WDM devem permitir o desenvolvimento de sistemas de comutação ATM de alta velocidade que podem atingir uma taxa de transferência superior a 1 Tbit/s.
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Seisho YASUKAWA, Naoaki YAMANAKA, Eiji OKI, Ryusuke KAWANO, "High-Speed Multi-Stage ATM Switch Based on Hierarchical Cell Resequencing Architecture and WDM Interconnection" in IEICE TRANSACTIONS on Electronics,
vol. E82-C, no. 2, pp. 219-228, February 1999, doi: .
Abstract: This paper proposesd a non-blocking multi-stage ATM switch based on a hierarchical-cell-resequencing (HCR) mechanism and high-speed WDM interconnection and reports on its feasibility study. In a multi-stage ATM switch, cell-based routing is effective to make the switch non-blocking, because all traffic is randomly distributed over intermediate switching stages. But due to the multi-path conditions, cells may arrive out of sequence at the output of the switching fabric. Therefore, resequencing must be performed either at each output of the final switching stage or at the output of each switching stage. The basic HCR switch performs cell resequencing in a hierarchical manner when switching cells from an input-lines to a output-line. As a result, the cell sequence in each output of the basic HCR switch is recovered. A multi-stage HCR switch is constructed by interconnecting the input-lines and output-lines of these basic HCR switches in a hierarchical manner. Therefore, the cell sequence in each final output of the switching fabric is conserved in a hierarchical manner. In this way, cell-based routing becomes possible and a multi-stage ATM switch with the HCR mechanism can achieve 100% throughput without any internal speed-up techniques. Because a large-capacity multi-stage HCR switch needs a huge number of high-speed signal interconnections, a breakthrough in compact optical interconnection technology is required. Therefore, this paper proposes a WDM interconnection system with an optical router arrayed waveguide filter (AWGF) that interconnects high-speed switch elements effectively and reports its feasibility study. In this architecture, each switch element is addressed by a unique wavelength. As a result, a switch in a previous stage can transmit a cell to any switch in the next stage by only selecting its cell transmission wavelength. To make this system feasible, we developed a wide-channel-spacing optical router AWGF and compact 10-Gbit/s optical transmitter and receiver modules with a compact high-power electroabsorption distributed feedback (EA-DFB) laser and a new bit decision circuit. Using these modules, we confirmed stable operation of the WDM interconnection. This switch architecture and WDM interconnection system should enable the development of high-speed ATM switching systems that can achieve throughput of over 1 Tbit/s.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e82-c_2_219/_p
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@ARTICLE{e82-c_2_219,
author={Seisho YASUKAWA, Naoaki YAMANAKA, Eiji OKI, Ryusuke KAWANO, },
journal={IEICE TRANSACTIONS on Electronics},
title={High-Speed Multi-Stage ATM Switch Based on Hierarchical Cell Resequencing Architecture and WDM Interconnection},
year={1999},
volume={E82-C},
number={2},
pages={219-228},
abstract={This paper proposesd a non-blocking multi-stage ATM switch based on a hierarchical-cell-resequencing (HCR) mechanism and high-speed WDM interconnection and reports on its feasibility study. In a multi-stage ATM switch, cell-based routing is effective to make the switch non-blocking, because all traffic is randomly distributed over intermediate switching stages. But due to the multi-path conditions, cells may arrive out of sequence at the output of the switching fabric. Therefore, resequencing must be performed either at each output of the final switching stage or at the output of each switching stage. The basic HCR switch performs cell resequencing in a hierarchical manner when switching cells from an input-lines to a output-line. As a result, the cell sequence in each output of the basic HCR switch is recovered. A multi-stage HCR switch is constructed by interconnecting the input-lines and output-lines of these basic HCR switches in a hierarchical manner. Therefore, the cell sequence in each final output of the switching fabric is conserved in a hierarchical manner. In this way, cell-based routing becomes possible and a multi-stage ATM switch with the HCR mechanism can achieve 100% throughput without any internal speed-up techniques. Because a large-capacity multi-stage HCR switch needs a huge number of high-speed signal interconnections, a breakthrough in compact optical interconnection technology is required. Therefore, this paper proposes a WDM interconnection system with an optical router arrayed waveguide filter (AWGF) that interconnects high-speed switch elements effectively and reports its feasibility study. In this architecture, each switch element is addressed by a unique wavelength. As a result, a switch in a previous stage can transmit a cell to any switch in the next stage by only selecting its cell transmission wavelength. To make this system feasible, we developed a wide-channel-spacing optical router AWGF and compact 10-Gbit/s optical transmitter and receiver modules with a compact high-power electroabsorption distributed feedback (EA-DFB) laser and a new bit decision circuit. Using these modules, we confirmed stable operation of the WDM interconnection. This switch architecture and WDM interconnection system should enable the development of high-speed ATM switching systems that can achieve throughput of over 1 Tbit/s.},
keywords={},
doi={},
ISSN={},
month={February},}
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TY - JOUR
TI - High-Speed Multi-Stage ATM Switch Based on Hierarchical Cell Resequencing Architecture and WDM Interconnection
T2 - IEICE TRANSACTIONS on Electronics
SP - 219
EP - 228
AU - Seisho YASUKAWA
AU - Naoaki YAMANAKA
AU - Eiji OKI
AU - Ryusuke KAWANO
PY - 1999
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E82-C
IS - 2
JA - IEICE TRANSACTIONS on Electronics
Y1 - February 1999
AB - This paper proposesd a non-blocking multi-stage ATM switch based on a hierarchical-cell-resequencing (HCR) mechanism and high-speed WDM interconnection and reports on its feasibility study. In a multi-stage ATM switch, cell-based routing is effective to make the switch non-blocking, because all traffic is randomly distributed over intermediate switching stages. But due to the multi-path conditions, cells may arrive out of sequence at the output of the switching fabric. Therefore, resequencing must be performed either at each output of the final switching stage or at the output of each switching stage. The basic HCR switch performs cell resequencing in a hierarchical manner when switching cells from an input-lines to a output-line. As a result, the cell sequence in each output of the basic HCR switch is recovered. A multi-stage HCR switch is constructed by interconnecting the input-lines and output-lines of these basic HCR switches in a hierarchical manner. Therefore, the cell sequence in each final output of the switching fabric is conserved in a hierarchical manner. In this way, cell-based routing becomes possible and a multi-stage ATM switch with the HCR mechanism can achieve 100% throughput without any internal speed-up techniques. Because a large-capacity multi-stage HCR switch needs a huge number of high-speed signal interconnections, a breakthrough in compact optical interconnection technology is required. Therefore, this paper proposes a WDM interconnection system with an optical router arrayed waveguide filter (AWGF) that interconnects high-speed switch elements effectively and reports its feasibility study. In this architecture, each switch element is addressed by a unique wavelength. As a result, a switch in a previous stage can transmit a cell to any switch in the next stage by only selecting its cell transmission wavelength. To make this system feasible, we developed a wide-channel-spacing optical router AWGF and compact 10-Gbit/s optical transmitter and receiver modules with a compact high-power electroabsorption distributed feedback (EA-DFB) laser and a new bit decision circuit. Using these modules, we confirmed stable operation of the WDM interconnection. This switch architecture and WDM interconnection system should enable the development of high-speed ATM switching systems that can achieve throughput of over 1 Tbit/s.
ER -