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
Dans cet article, nous proposons des mécanismes d'adaptation de débit pour des transmissions vidéo robustes et à faible latence exploitant des réseaux locaux sans fil (WLAN) à points d'accès multiples (Multi-AP). Les transmissions vidéo multi-AP utilisent la diffusion au niveau liaison et la correction d'erreur directe (FEC) au niveau paquet afin de réaliser des transmissions vidéo robustes et à faible latence depuis une station WLAN (STA) vers une passerelle (GW). Le débit PHY (couche physique) et le débit FEC jouent un rôle clé dans le contrôle du compromis entre la fiabilité obtenue et le temps d'antenne (c'est-à-dire la période d'occupation du canal partagé) pour les WLAN multi-AP. Afin de contrôler finement ce compromis tout en améliorant la qualité vidéo transmise, l'adaptation de débit proposée contrôle le débit PHY et le débit FEC à utiliser pour les transmissions multi-AP en fonction de la qualité de liaison et du format de trame du trafic vidéo véhiculé. Avec des simulations informatiques, nous évaluons et étudions l'efficacité de l'adaptation de débit proposée en termes de débit de livraison de paquets (PDR), de temps d'antenne, de délai et de rapport signal/bruit de crête (PSNR). De plus, la qualité de la vidéo est évaluée en utilisant le trafic codé/décodé par le codeur/décodeur vidéo réel. Tous ces résultats montrent que l'adaptation de débit proposée contrôle bien le compromis entre la fiabilité et le temps d'antenne tout en offrant des transmissions vidéo de haute qualité et à faible latence.
Kazuma YAMAMOTO
Kansai University
Hiroyuki YOMO
Kansai University
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Kazuma YAMAMOTO, Hiroyuki YOMO, "Rate Adaptation for Robust and Low-Latency Video Transmissions Using Multi-AP Wireless LAN" in IEICE TRANSACTIONS on Communications,
vol. E105-B, no. 2, pp. 177-185, February 2022, doi: 10.1587/transcom.2021CEP0015.
Abstract: In this paper, we propose rate adaptation mechanisms for robust and low-latency video transmissions exploiting multiple access points (Multi-AP) wireless local area networks (WLANs). The Multi-AP video transmissions employ link-level broadcast and packet-level forward error correction (FEC) in order to realize robust and low-latency video transmissions from a WLAN station (STA) to a gateway (GW). The PHY (physical layer) rate and FEC rate play a key role to control trade-off between the achieved reliability and airtime (i.e., occupancy period of the shared channel) for Multi-AP WLANs. In order to finely control this trade-off while improving the transmitted video quality, the proposed rate adaptation controls PHY rate and FEC rate to be employed for Multi-AP transmissions based on the link quality and frame format of conveyed video traffic. With computer simulations, we evaluate and investigate the effectiveness of the proposed rate adaptation in terms of packet delivery rate (PDR), airtime, delay, and peak signal to noise ratio (PSNR). Furthermore, the quality of video is assessed by using the traffic encoded/decoded by the actual video encoder/decoder. All these results show that the proposed rate adaptation controls trade-off between the reliability and airtime well while offering the high-quality and low-latency video transmissions.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2021CEP0015/_p
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@ARTICLE{e105-b_2_177,
author={Kazuma YAMAMOTO, Hiroyuki YOMO, },
journal={IEICE TRANSACTIONS on Communications},
title={Rate Adaptation for Robust and Low-Latency Video Transmissions Using Multi-AP Wireless LAN},
year={2022},
volume={E105-B},
number={2},
pages={177-185},
abstract={In this paper, we propose rate adaptation mechanisms for robust and low-latency video transmissions exploiting multiple access points (Multi-AP) wireless local area networks (WLANs). The Multi-AP video transmissions employ link-level broadcast and packet-level forward error correction (FEC) in order to realize robust and low-latency video transmissions from a WLAN station (STA) to a gateway (GW). The PHY (physical layer) rate and FEC rate play a key role to control trade-off between the achieved reliability and airtime (i.e., occupancy period of the shared channel) for Multi-AP WLANs. In order to finely control this trade-off while improving the transmitted video quality, the proposed rate adaptation controls PHY rate and FEC rate to be employed for Multi-AP transmissions based on the link quality and frame format of conveyed video traffic. With computer simulations, we evaluate and investigate the effectiveness of the proposed rate adaptation in terms of packet delivery rate (PDR), airtime, delay, and peak signal to noise ratio (PSNR). Furthermore, the quality of video is assessed by using the traffic encoded/decoded by the actual video encoder/decoder. All these results show that the proposed rate adaptation controls trade-off between the reliability and airtime well while offering the high-quality and low-latency video transmissions.},
keywords={},
doi={10.1587/transcom.2021CEP0015},
ISSN={1745-1345},
month={February},}
Copier
TY - JOUR
TI - Rate Adaptation for Robust and Low-Latency Video Transmissions Using Multi-AP Wireless LAN
T2 - IEICE TRANSACTIONS on Communications
SP - 177
EP - 185
AU - Kazuma YAMAMOTO
AU - Hiroyuki YOMO
PY - 2022
DO - 10.1587/transcom.2021CEP0015
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E105-B
IS - 2
JA - IEICE TRANSACTIONS on Communications
Y1 - February 2022
AB - In this paper, we propose rate adaptation mechanisms for robust and low-latency video transmissions exploiting multiple access points (Multi-AP) wireless local area networks (WLANs). The Multi-AP video transmissions employ link-level broadcast and packet-level forward error correction (FEC) in order to realize robust and low-latency video transmissions from a WLAN station (STA) to a gateway (GW). The PHY (physical layer) rate and FEC rate play a key role to control trade-off between the achieved reliability and airtime (i.e., occupancy period of the shared channel) for Multi-AP WLANs. In order to finely control this trade-off while improving the transmitted video quality, the proposed rate adaptation controls PHY rate and FEC rate to be employed for Multi-AP transmissions based on the link quality and frame format of conveyed video traffic. With computer simulations, we evaluate and investigate the effectiveness of the proposed rate adaptation in terms of packet delivery rate (PDR), airtime, delay, and peak signal to noise ratio (PSNR). Furthermore, the quality of video is assessed by using the traffic encoded/decoded by the actual video encoder/decoder. All these results show that the proposed rate adaptation controls trade-off between the reliability and airtime well while offering the high-quality and low-latency video transmissions.
ER -