CFX: Contention-Free Channel Access for IEEE 802.11ax [PDF]
Sensors, 2022 Orthogonal frequency-division multiple access (OFDMA) has attracted great attention as a key technology for uplink enhancement for Wi-Fi, since it can effectively reduce network congestion and channel access delay.
Kyu-haeng Lee, Daehee Kim
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IEEE 802.11ax OFDMA Resource Allocation with Frequency-Selective Fading [PDF]
Sensors, 2021 This paper studies the usage of orthogonal frequency division multiple access (OFDMA) for uplink transmissions in IEEE 802.11ax networks. OFDMA enables simultaneous multi-user transmissions in Wi-Fi, but its usage requires efficient resource allocation ...
Sergei Tutelian +3 more
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An Analysis of the Mixed IEEE 802.11ax Wireless Networks in the 5 GHz Band [PDF]
Sensors, 2023 This paper presents an analysis of the IEEE 802.11ax networks’ coexistence with legacy stations, namely IEEE 802.11ac, IEEE 802.11n, and IEEE 802.11a.
Marek Natkaniec, Natalia Bieryt
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Performance and simulation analysis of 802.11ax OFDMA in contention-driven scenarios [PDF]
PeerJ Computer ScienceThe 802.11ax standard introduces Orthogonal Frequency Division Multiple Access (OFDMA), shifting the role of access points (APs) in Wi-Fi networks. This shift integrates intricate scheduling logic, assigning coordinator roles to APs for multi-user uplink
Memoona, Sung Won Kim
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Interference-Aware Two-Level Differentiated Transmission for Improving Downlink Spatial Reuse in Dense WLANs [PDF]
Sensors, 2022 In this study, we address the problem of downlink throughput degradation in dense wireless local area networks (WLANs) based on the IEEE 802.11ax standard. We demonstrate that this problem essentially results from the asymmetric characteristic of carrier
Lam Kwon, Eun-Chan Park
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Performance Analysis of the IEEE 802.11ax MAC Protocol for Heterogeneous Wi-Fi Networks in Non-Saturated Conditions [PDF]
Sensors, 2019 The IEEE 802.11ax standard, which realizes multi-user transmission based on orthogonal frequency division multiple access (OFDMA), has been highlighted as a key technology to meet high future demand for Wi-Fi systems.
Kyu-haeng Lee
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OFDMA Backoff Control Scheme for Improving Channel Efficiency in the Dynamic Network Environment of IEEE 802.11ax WLANs [PDF]
Sensors, 2021 IEEE 802.11ax uplink orthogonal frequency division multiple access (OFDMA)-based random access (UORA) is a new feature for random channel access in wireless local area networks (WLANs).
Youngboo Kim, Lam Kwon, Eun-Chan Park
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Interference-Aware Adaptive Beam Alignment for Hyper-Dense IEEE 802.11ax Internet-of-Things Networks [PDF]
Sensors, 2018 The increasing use of Internet of Things (IoT) devices in specific areas results in an interference among them and the quality of communications can be severely degraded.
Dohyun Kwon +3 more
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Transmission Delay-Based Uplink Multi-User Scheduling in IEEE 802.11ax Networks
Applied Sciences, 2021 As the demands for uplink traffic increase, improving the uplink throughput has attracted research attention in IEEE 802.11 networks. To avoid excessive competition among stations and enhance the uplink throughput performance, the IEEE 802.11ax standard ...
Yonggang Kim +3 more
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The Review of Mobile Applications and Wireless Technologies in Sustaining K-12 Schools during COVID-19 [PDF]
EAI Endorsed Transactions on Mobile Communications and Applications, 2021 Mobile-learning (M-Learning) is no longer a futuristic concept in E-learning. The disruptions induced by the mandatory social distancing norms amidst the COVID-19 pandemic has brought it to the centre stage as it facilitates seamless ...
Karuna Finch +2 more
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