Results 151 to 160 of about 2,401 (175)

Validation of the ns-3 802.11ax OFDMA implementation

Proceedings of the Workshop on ns-3, 2021
The introduction of Orthogonal Frequency Division Multiple Access (OFDMA) in 802.11ax signifies a change in role for the Access Point (AP) in WiFi networks, with the opportunity to implement more complex scheduling logic to handle Downlink (DL) traffic flows and simultaneously act as coordinator of Multi User (MU) Uplink (UL) transmissions.
Magrin D., Avallone S., Roy S., Zorzi M.
openaire   +3 more sources

OFDMA Uplink Scheduling in IEEE 802.11ax Networks

2018 IEEE International Conference on Communications (ICC), 2018
In the modern world, a high-speed wireless Internet connection is a necessity rather than a luxury. To improve the efficiency of Wi-Fi networks in dense deployment, a novel amendment to the Wi-Fi standard, namely IEEE 802.11ax introduces Orthogonal frequency-division multiple access (OFDMA).
Dmitry Bankov, Andre Didenko, Evgeny Khorov, Andrey Lyakhov   +3 more
openaire   +1 more source

Performance Evaluation of 802.11ax OFDMA Through Theoretical Analysis and Simulations

IEEE Transactions on Wireless Communications, 2023
With the introduction of Orthogonal Frequency Division Multiple Access (OFDMA) in 802.11ax, the role of the Access Point (AP) in Wi-Fi networks changes significantly, thanks to the opportunity of implementing more complex scheduling logic to handle Downlink (DL) traffic flows and simultaneously act as coordinator of Multi User (MU) Uplink (UL ...
Davide Magrin, Stefano Avallone, Sumit Roy, Michele Zorzi   +3 more
openaire   +2 more sources

MAC Technology of IEEE 802.11ax: Progress and Tutorial

Mobile Networks and Applications, 2020
High-dense deployment scenario is supposed to be the killer scenario of the future wireless networks. The next generation high efficiency wireless local area networks (WLANs) standard - IEEE 802.11ax, which will be released in the year 2019, directly faces to the high-dense deployment scenario.
Mao Yang, Bo Li, Zhongjiang Yan
openaire   +1 more source

High Efficiency WLANs IEEE 802.11ax Performance Evaluation

2018 International Conference on Control, Automation and Diagnosis (ICCAD), 2018
Users of wireless networks, require mostly speed and strength when it comes to connectivity. However, the increasing number of devices, diversity of traffic, and the density of networks, makes it difficult to maintain a reliable and efficient connection. Hence, the need for High Efficiency WLAN, often referred to as IEEE 802.llax.
Zineb Machrouh, Abdellah Najid
openaire   +1 more source

IEEE 802.11ax: giant leap in WLAN evolution

XII Conference on Reconnaissance and Electronic Warfare Systems, 2019
Wireless local area networks (WLANs) are a cost-efficient solution that satisfy most current communication requirements in domestic, public and business scenarios. However, WLANs face two main challenges. Firstly, they must address dense scenarios, which is motivated by the continuous deployment of new access points to cover new areas.
openaire   +1 more source

Improving spectrum efficiency of 802.11ax networks

2019
Legacy 802.11 standards improved the throughput of Wi-Fi networks via various techniques, such as MIMO, frame aggregation, higher modulation, and coding scheme (MCS), shorter guard interval and so on. However, the multiple access method was unchanged: a node listens to the channel before transmission, if the channel is busy, the node waits for a random
openaire   +1 more source

IEEE 802.11ax: How to Build High Efficiency WLANs

2015 International Conference on Engineering and Telecommunication (EnT), 2015
Wi-Fi was designed just to replace wired Internet connection, but it has changed the Internet as a whole. Wireless devices generate the largest percentage of the Internet traffic and the Wi-Fi market is continuously raising, which brings new challenges connected with more devices, more data, and higher Quality of Experience expectations.
Evgeny Khorov, Anton Kiryanov, Andrey Lyakhov   +2 more
openaire   +1 more source

Throughput-maximizing OFDMA Scheduler for IEEE 802.11ax Networks

2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications, 2020
In this paper, we develop a novel throughput- maximizing OFDMA scheduler for the multi-user MAC framework for the IEEE 802.11ax networks. The scheduler works both in the downlink and uplink directions and assigns resource units to stations using a linear programming technique considering load of each client, possible resource unit configurations ...
Kuran M. S., Dilmac A., Topal O., Yamansavascilar B., Avallone S., Tugcu T.   +5 more
openaire   +2 more sources

IEEE 802.11ax: Next generation wireless local area networks

10th International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness, 2014
Recently, IEEE 802 started a task group to investigate and deliver next generation WLAN technologies for the scenarios of dense networks with a large number of stations and access point. The proposal is specified as the IEEE 802.11ax amendment. Due to the significant network capacity increase achieved by 802.11ax, the term high-efficiency WLAN (HEW) is
Der-Jiunn Deng, Kwang-Cheng Chen, Rung-Shiang Cheng   +2 more
openaire   +1 more source