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
Serviços não em tempo real (NRT), como tráfego nrt-VBR, ABR e UBR, destinam-se a aplicações de dados. Embora os serviços NRT não tenham requisitos rigorosos de QoS para atraso de transferência celular e variação de atraso celular, as redes ATM devem fornecer serviços NRT considerando outros critérios para garantir um desempenho excelente, como taxa de perda de célula (CLR), requisitos de tamanho de buffer e justiça de serviço. A justiça no serviço significa que as redes devem tratar todas as conexões de maneira justa. Ou seja, as ligações com baixas taxas de chegada não devem ser discriminadas. Além disso, dado um tamanho de buffer fixo para uma conexão, reduzir o número máximo de células em um buffer durante o tempo de vida de uma conexão pode levar a um CLR baixo devido ao estouro do buffer. Assim, estes critérios devem ser considerados tanto quanto possível ao projetar um escalonador de células para fornecer serviços NRT. Considerando que a maioria dos esquemas convencionais de escalonamento de células são geralmente apropriados para um critério de desempenho, mas inadequados para outro. Neste trabalho, apresentamos um novo esquema de escalonamento de células, denominado buffer minimizado e justiça de serviço (BMSF), para escalonar serviços NRT em redes ATM. Usar restrições de probabilidade e selecionar uma conexão com o tamanho de buffer mais longo para transmitir primeiro permite que o BMSF atinja um desempenho satisfatório em relação ao requisito de tamanho máximo de buffer, CLR e justiça de serviço em termos de tamanho máximo de buffer e critérios de atraso de espera de célula. Os resultados da simulação demonstram que o BMSF tem um desempenho melhor do que alguns esquemas convencionais em termos destes critérios, particularmente quando os serviços NRT têm taxas de chegada diversas. Assim, o esquema BMSF aqui proposto pode agendar de forma viável serviços NRT em redes ATM.
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Wen-Tsuen CHEN, Rong-Ruey LEE, "A Cell Scheduler for Non-Real-Time Traffic with Service Fairness in ATM Networks" in IEICE TRANSACTIONS on Communications,
vol. E83-B, no. 7, pp. 1465-1473, July 2000, doi: .
Abstract: Non-real-time (NRT) services such as nrt-VBR, ABR and UBR traffic are intended for data applications. Although NRT services do not have stringent QoS requirements for cell transfer delay and cell delay variation, ATM networks should provide NRT services while considering other criteria to ensure an excellent performance such as cell loss ratio (CLR), buffer size requirement and service fairness. Service fairness means that networks should treat all connections fairly. That is, connections with low arrival rates should not be discriminated against. In addition, given a fixed buffer size for a connection, reducing the maximum number of cells in a buffer during the lifetime of a connection can lead to a low CLR due to buffer overflow. Thus, these criteria should be considered as much as possible when designing a cell scheduler to provide NRT services. Whereas most of the conventional cell scheduling schemes are usually appropriate for one performance criterion, but inappropriate for another one. In this work, we present a novel cell scheduling scheme, called buffer minimized and service fairness (BMSF), to schedule NRT services in ATM networks. Using probability constraints and selecting a connection with the longest buffer size to transmit first allow BMSF to attain a satisfactory performance with respect to maximum buffer size requirement, CLR, and service fairness in terms of the maximum buffer size and cell waiting delay criteria. Simulation results demonstrate that BMSF performs better than some conventional schemes in terms of these criteria, particularly when NRT services have diverse arrival rates. Thus, the BMSF scheme proposed herein can feasibly schedule NRT services in ATM networks.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e83-b_7_1465/_p
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@ARTICLE{e83-b_7_1465,
author={Wen-Tsuen CHEN, Rong-Ruey LEE, },
journal={IEICE TRANSACTIONS on Communications},
title={A Cell Scheduler for Non-Real-Time Traffic with Service Fairness in ATM Networks},
year={2000},
volume={E83-B},
number={7},
pages={1465-1473},
abstract={Non-real-time (NRT) services such as nrt-VBR, ABR and UBR traffic are intended for data applications. Although NRT services do not have stringent QoS requirements for cell transfer delay and cell delay variation, ATM networks should provide NRT services while considering other criteria to ensure an excellent performance such as cell loss ratio (CLR), buffer size requirement and service fairness. Service fairness means that networks should treat all connections fairly. That is, connections with low arrival rates should not be discriminated against. In addition, given a fixed buffer size for a connection, reducing the maximum number of cells in a buffer during the lifetime of a connection can lead to a low CLR due to buffer overflow. Thus, these criteria should be considered as much as possible when designing a cell scheduler to provide NRT services. Whereas most of the conventional cell scheduling schemes are usually appropriate for one performance criterion, but inappropriate for another one. In this work, we present a novel cell scheduling scheme, called buffer minimized and service fairness (BMSF), to schedule NRT services in ATM networks. Using probability constraints and selecting a connection with the longest buffer size to transmit first allow BMSF to attain a satisfactory performance with respect to maximum buffer size requirement, CLR, and service fairness in terms of the maximum buffer size and cell waiting delay criteria. Simulation results demonstrate that BMSF performs better than some conventional schemes in terms of these criteria, particularly when NRT services have diverse arrival rates. Thus, the BMSF scheme proposed herein can feasibly schedule NRT services in ATM networks.},
keywords={},
doi={},
ISSN={},
month={July},}
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TY - JOUR
TI - A Cell Scheduler for Non-Real-Time Traffic with Service Fairness in ATM Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 1465
EP - 1473
AU - Wen-Tsuen CHEN
AU - Rong-Ruey LEE
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E83-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2000
AB - Non-real-time (NRT) services such as nrt-VBR, ABR and UBR traffic are intended for data applications. Although NRT services do not have stringent QoS requirements for cell transfer delay and cell delay variation, ATM networks should provide NRT services while considering other criteria to ensure an excellent performance such as cell loss ratio (CLR), buffer size requirement and service fairness. Service fairness means that networks should treat all connections fairly. That is, connections with low arrival rates should not be discriminated against. In addition, given a fixed buffer size for a connection, reducing the maximum number of cells in a buffer during the lifetime of a connection can lead to a low CLR due to buffer overflow. Thus, these criteria should be considered as much as possible when designing a cell scheduler to provide NRT services. Whereas most of the conventional cell scheduling schemes are usually appropriate for one performance criterion, but inappropriate for another one. In this work, we present a novel cell scheduling scheme, called buffer minimized and service fairness (BMSF), to schedule NRT services in ATM networks. Using probability constraints and selecting a connection with the longest buffer size to transmit first allow BMSF to attain a satisfactory performance with respect to maximum buffer size requirement, CLR, and service fairness in terms of the maximum buffer size and cell waiting delay criteria. Simulation results demonstrate that BMSF performs better than some conventional schemes in terms of these criteria, particularly when NRT services have diverse arrival rates. Thus, the BMSF scheme proposed herein can feasibly schedule NRT services in ATM networks.
ER -