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 avalia a QoS e a Qualidade de Experiência (QoE) em nível de aplicação no caso em que fluxos de áudio e vídeo são transferidos com o acesso aprimorado ao canal distribuído (EDCA) do IEEE 802.11e MAC. No EDCA, uma estação pode transmitir múltiplos quadros MAC durante uma oportunidade de transmissão (TXOP); isso é conhecido como estouro de TXOP. Por simulação, primeiro comparamos a QoS em nível de aplicação com o esquema de bursting TXOP e sem o esquema para várias distâncias entre pontos de acesso (AP) e estações. Neste artigo, supomos que a taxa de erro de bit (BER) aumenta à medida que a distância aumenta. Os resultados numéricos mostram que o bursting TXOP pode melhorar muitas métricas de qualidade de vídeo, como atraso médio da unidade de mídia (MU), taxa de perda de MU e qualidade de sincronização de mídia, especialmente quando o AP envia fluxos de áudio e vídeo para estações na direção do downlink. Examinaremos então o efeito TXOPLimitar na qualidade do vídeo. Os resultados da simulação mostram que a qualidade do vídeo pode ser degradada se o valor de TXOPLimitar é muito pequeno. Além disso, avaliamos a QoE pelo método de categorias sucessivas, que é um método psicométrico. Os resultados numéricos mostram que o bursting TXOP também pode melhorar a QoE. Também realizamos mapeamento de QoS entre nível de aplicativo e nível de usuário com análise de componentes principais e análise de regressão múltipla.
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Takahiro SUZUKI, Shuji TASAKA, Atsunori NOGUCHI, "Application-Level QoS and QoE Assessment of Audio-Video Transmission with TXOP-Bursting by IEEE 802.11e EDCA" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 8, pp. 2600-2609, August 2009, doi: 10.1587/transcom.E92.B.2600.
Abstract: This paper assesses application-level QoS and Quality of Experience (QoE) in the case where audio and video streams are transferred with the enhanced distributed channel access (EDCA) of the IEEE 802.11e MAC. In EDCA, a station can transmit multiple MAC frames during a transmission opportunity (TXOP); this is referred to as TXOP-bursting. By simulation, we first compare application-level QoS with the TXOP-bursting scheme and that without the scheme for various distances between access point (AP) and stations. In this paper, we suppose that the bit error rate (BER) becomes larger as the distance increases. Numerical results show that TXOP-bursting can improve many metrics of video quality such as average media unit (MU) delay, MU loss ratio, and media synchronization quality, particularly when the AP sends audio and video streams to stations in the downlink direction. We then examine the effect of TXOPLimit on the video quality. Simulation results show that the video quality can be degraded if the value of TXOPLimit is too small. Furthermore, we assess QoE by the method of successive categories, which is a psychometric method. Numerical results show that TXOP-bursting can also improve the QoE. We also perform QoS mapping between application-level and user-level with principal component analysis and multiple regression analysis.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.2600/_p
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@ARTICLE{e92-b_8_2600,
author={Takahiro SUZUKI, Shuji TASAKA, Atsunori NOGUCHI, },
journal={IEICE TRANSACTIONS on Communications},
title={Application-Level QoS and QoE Assessment of Audio-Video Transmission with TXOP-Bursting by IEEE 802.11e EDCA},
year={2009},
volume={E92-B},
number={8},
pages={2600-2609},
abstract={This paper assesses application-level QoS and Quality of Experience (QoE) in the case where audio and video streams are transferred with the enhanced distributed channel access (EDCA) of the IEEE 802.11e MAC. In EDCA, a station can transmit multiple MAC frames during a transmission opportunity (TXOP); this is referred to as TXOP-bursting. By simulation, we first compare application-level QoS with the TXOP-bursting scheme and that without the scheme for various distances between access point (AP) and stations. In this paper, we suppose that the bit error rate (BER) becomes larger as the distance increases. Numerical results show that TXOP-bursting can improve many metrics of video quality such as average media unit (MU) delay, MU loss ratio, and media synchronization quality, particularly when the AP sends audio and video streams to stations in the downlink direction. We then examine the effect of TXOPLimit on the video quality. Simulation results show that the video quality can be degraded if the value of TXOPLimit is too small. Furthermore, we assess QoE by the method of successive categories, which is a psychometric method. Numerical results show that TXOP-bursting can also improve the QoE. We also perform QoS mapping between application-level and user-level with principal component analysis and multiple regression analysis.},
keywords={},
doi={10.1587/transcom.E92.B.2600},
ISSN={1745-1345},
month={August},}
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TY - JOUR
TI - Application-Level QoS and QoE Assessment of Audio-Video Transmission with TXOP-Bursting by IEEE 802.11e EDCA
T2 - IEICE TRANSACTIONS on Communications
SP - 2600
EP - 2609
AU - Takahiro SUZUKI
AU - Shuji TASAKA
AU - Atsunori NOGUCHI
PY - 2009
DO - 10.1587/transcom.E92.B.2600
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2009
AB - This paper assesses application-level QoS and Quality of Experience (QoE) in the case where audio and video streams are transferred with the enhanced distributed channel access (EDCA) of the IEEE 802.11e MAC. In EDCA, a station can transmit multiple MAC frames during a transmission opportunity (TXOP); this is referred to as TXOP-bursting. By simulation, we first compare application-level QoS with the TXOP-bursting scheme and that without the scheme for various distances between access point (AP) and stations. In this paper, we suppose that the bit error rate (BER) becomes larger as the distance increases. Numerical results show that TXOP-bursting can improve many metrics of video quality such as average media unit (MU) delay, MU loss ratio, and media synchronization quality, particularly when the AP sends audio and video streams to stations in the downlink direction. We then examine the effect of TXOPLimit on the video quality. Simulation results show that the video quality can be degraded if the value of TXOPLimit is too small. Furthermore, we assess QoE by the method of successive categories, which is a psychometric method. Numerical results show that TXOP-bursting can also improve the QoE. We also perform QoS mapping between application-level and user-level with principal component analysis and multiple regression analysis.
ER -