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
O padrão IEEE 802.11e define diversas técnicas importantes que garantem a qualidade de serviço (QoS) de comunicações multimídia em aplicações de LAN sem fio. Uma técnica chave introduzida no padrão é um controle de acesso de mídia eficiente baseado na Função de Coordenação Híbrida (HCF), que atribui uma oportunidade de transmissão apropriada (TXOP) a cada fluxo para satisfazer vários requisitos do fluxo, como limite de atraso e largura de banda de comunicação. . Embora o escalonador simples projetado em HCF possa fornecer uma ferramenta eficiente para garantir a QoS em aplicações de LAN sem fio, ele tem uma séria desvantagem, onde ocorre frequentemente uma atribuição inútil de largura de banda. Tais atribuições ocorrem principalmente devido a uma limitação do esquema, onde todos os fluxos compartilham o mesmo intervalo de serviço (SI). Neste artigo, propomos um novo esquema de escalonamento que associa cada fluxo ao seu próprio SI de acordo com a dureza do SI requerido. O efeito desta abordagem é avaliado experimentalmente por simulação, cujos resultados indicam que o número de fluxos admitidos e a utilização dos recursos da rede aumentam devido ao esquema proposto.
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Shigeaki TAGASHIRA, Masahiro YAMANE, Satoshi FUJITA, "An Efficient Scheduling Scheme for Assigning Transmission Opportunity in QoS-Guaranteed Wireless LAN" in IEICE TRANSACTIONS on Fundamentals,
vol. E91-A, no. 7, pp. 1562-1569, July 2008, doi: 10.1093/ietfec/e91-a.7.1562.
Abstract: The IEEE 802.11e standard defines several important techniques that guarantee the quality of service (QoS) of multimedia communications in wireless LAN applications. A key technique introduced in the standard is an efficient media access control based on the Hybrid Coordination Function (HCF), which assigns an appropriate transmission opportunity (TXOP) to each flow for satisfying several requirements on the flow, such as delay bound and communication bandwidth. Although the simple scheduler designed in HCF could provide an efficient tool to guarantee the QoS in wireless LAN applications, it has a serious drawback, wherein a useless bandwidth assignment frequently occurs. Such assignments occur primarily due to a limitation of the scheme, wherein all the flows share the same service interval (SI). In this paper, we propose a new scheduling scheme that associates each flow with its own SI according to the hardness of the required SI. The effect of this approach is experimentally evaluated by simulation, the results of which indicate that the number of admitted flows and network resource utilization increase due to the proposed scheme.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1093/ietfec/e91-a.7.1562/_p
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@ARTICLE{e91-a_7_1562,
author={Shigeaki TAGASHIRA, Masahiro YAMANE, Satoshi FUJITA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={An Efficient Scheduling Scheme for Assigning Transmission Opportunity in QoS-Guaranteed Wireless LAN},
year={2008},
volume={E91-A},
number={7},
pages={1562-1569},
abstract={The IEEE 802.11e standard defines several important techniques that guarantee the quality of service (QoS) of multimedia communications in wireless LAN applications. A key technique introduced in the standard is an efficient media access control based on the Hybrid Coordination Function (HCF), which assigns an appropriate transmission opportunity (TXOP) to each flow for satisfying several requirements on the flow, such as delay bound and communication bandwidth. Although the simple scheduler designed in HCF could provide an efficient tool to guarantee the QoS in wireless LAN applications, it has a serious drawback, wherein a useless bandwidth assignment frequently occurs. Such assignments occur primarily due to a limitation of the scheme, wherein all the flows share the same service interval (SI). In this paper, we propose a new scheduling scheme that associates each flow with its own SI according to the hardness of the required SI. The effect of this approach is experimentally evaluated by simulation, the results of which indicate that the number of admitted flows and network resource utilization increase due to the proposed scheme.},
keywords={},
doi={10.1093/ietfec/e91-a.7.1562},
ISSN={1745-1337},
month={July},}
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TY - JOUR
TI - An Efficient Scheduling Scheme for Assigning Transmission Opportunity in QoS-Guaranteed Wireless LAN
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1562
EP - 1569
AU - Shigeaki TAGASHIRA
AU - Masahiro YAMANE
AU - Satoshi FUJITA
PY - 2008
DO - 10.1093/ietfec/e91-a.7.1562
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E91-A
IS - 7
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - July 2008
AB - The IEEE 802.11e standard defines several important techniques that guarantee the quality of service (QoS) of multimedia communications in wireless LAN applications. A key technique introduced in the standard is an efficient media access control based on the Hybrid Coordination Function (HCF), which assigns an appropriate transmission opportunity (TXOP) to each flow for satisfying several requirements on the flow, such as delay bound and communication bandwidth. Although the simple scheduler designed in HCF could provide an efficient tool to guarantee the QoS in wireless LAN applications, it has a serious drawback, wherein a useless bandwidth assignment frequently occurs. Such assignments occur primarily due to a limitation of the scheme, wherein all the flows share the same service interval (SI). In this paper, we propose a new scheduling scheme that associates each flow with its own SI according to the hardness of the required SI. The effect of this approach is experimentally evaluated by simulation, the results of which indicate that the number of admitted flows and network resource utilization increase due to the proposed scheme.
ER -