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Enabling Massive Real-Time Applications in IEEE 802.11be Networks
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Next generation Wi-Fi networks are expected to support real-time applications that impose strict requirements on the packet transmission delay and packet loss ratio. Such applications form an essential target for the future Wi-Fi standard, namely IEEE 802.11be, the development process of which started in 2019. A promising way to provide efficient real-time communications in 802.11be networks requires some modification of the uplink OFDMA feature originally introduced in the IEEE 802.11ax amendment to the Wi-Fi standard. This feature allows the access point to reserve channel resources for upcoming urgent transmissions. The paper explains why uplink OFDMA random access of 802.11ax does not perfectly fit the requirements of real-time applications and proposes an easy-to-implement modification of the channel access rules for future 802.11be networks. With extensive simulation, it is shown that this modification together with a new resource allocation algorithm outperforms the existing ways to support real-time applications, especially for a heavy load and a high number of users. In particular, they provide extremely low delays for real-time traffic, while the throughput for non-real-time traffic is reduced insignificantly.
Makhmudov T. N., Захарова В. О., Салуев Е. А. et al., Динамика сложных систем - XXI век 2023 Т. 17 № 1 С. 13–29
Постановка проблемы. Во все времена информация являлась востребованным ресурсом. Злоумышленники, захватывая данные, в некоторых случаях могли существенно влиять не только на отдельные объекты и процессы, но и на развитие социума. Современный мир нельзя представить без беспроводных способов связи. Множество электронных устройств передают данные между собой с помощью различных протоколов, и, к сожалению, эти протоколы не ...
Added: December 27, 2025
Парошин В. Д., Левицкий И. А., Loginov V. et al., Информационные процессы 2023 Т. 23 № 4 С. 624–629
Multi-link operation is one of the main innovations of the upcoming IEEE 802.11be standard. MLO uses a common sliding window for all links to control the delivery of packets. Due to the finiteness of the sliding window, transmission of packets on one link may result in packet shortages on other links, reducing throughput. To avoid ...
Added: January 17, 2024
E. Khorov, A. Krasilov, M. Susloparov et al., IEEE Communications Surveys and Tutorials 2023 Vol. 25 No. 4 P. 2862–2891
Emerging wireless systems target to provide multi-Gbps data rates for each user, which can be achieved by utilizing ultra-wide channels available at mmWave, terahertz, and lightwave frequencies. In contrast to the traditional spectrum below 6 GHz, these high-frequency bands raise many issues, complicating their usage. For example, because of high signal attenuation and blockage by ...
Added: December 23, 2022
Korolev N., Ilya Levitsky, Startsev I. et al., IEEE Access 2022 Vol. 10 P. 126339–126351
Native support for multi-link operation is a key novelty of the future Wi-Fi 7 technology defined by the IEEE 802.11be standard, which is currently under development. With the 6 GHz band recently granted for Wi-Fi operation, the novel multi-link feature enables simultaneous usage of multiple wide channels. Thus, it multiplies the capacity of Wi-Fi networks ...
Added: December 22, 2022
Korolev G., Kureev A., Khorov E. et al., , in: 2020 International Conference Engineering and Telecommunication (En&T).: IEEE, 2020. P. 1–5.
© 2020 IEEE.Non-orthogonal multiple access (NOMA) is a key technology for future wireless systems. Keeping the number of antennas on the devices unchanged, NOMA increases the spectral efficiency of the wireless system and raises the aggregated system throughput. For this reason, NOMA is a very attractive technology for implementation in future Wi-Fi standards that will ...
Added: October 26, 2022
Korolev G., Kureev A., Khorov E. et al., , in: 2021 International Conference Engineering and Telecommunication (En&T).: IEEE, 2022. P. 1–5.
© 2021 IEEE.Non-Orthogonal Multiple Access (NOMA) is a promising technology for future Wi-Fi, In uplink NOMA, stations with different channel conditions transmit simultaneously at the same frequency by splitting the signal by power level. Since Wi-Fi uses random access, the implementation of uplink NOMA in Wi-Fi faces many challenges. The paper presents a data transmission ...
Added: October 26, 2022
A Phase Noise Resistant Constellation Rotation Method and Its Experimental Validation for NOMA Wi-Fi
Khorov E., Kureev A., Ilya Levitsky et al., IEEE Journal on Selected Areas in Communications 2022 Vol. 40 No. 4 P. 1346–1354
Non-orthogonal multiple access (NOMA) is a well-accepted technology for future Wi-Fi systems to improve spectral efficiency. NOMA allows an access point (AP) to simultaneously serve multiple devices by splitting the transmit power between them. Using the superposition coding the AP combines signals of different frames with predefined power weights. However, as it is already known, ...
Added: October 26, 2022
Korolev N., Ilya Levitsky, Khorov E., IEEE Wireless Communications Letters 2022 Vol. 11 No. 12 P. 2546–2549
The upcoming IEEE 802.11be standard, known as Wi-Fi 7, introduces the multi-link operation, which allows a Wi-Fi device to transmit and receive packets via several links simultaneously. However, in some cases, e.g., when the spectral distance between two channels used by the links is small, cross-link interference caused by the transmission on one link can ...
Added: October 26, 2022
Molodtsov V., Kureev A., Khorov E., IEEE Access 2021 Vol. 9 P. 153767–153774
Nowadays, the Direction of Arrival (DoA) estimation problem attracts much attention because of emerging use cases for wireless networks. DoA is beneficial for Reconfigurable IntelligentSurfaces, indoor localization, and various navigation and sensing applications, such as gesture recognition and home monitoring. The Multiple Signal Classification (MUSIC) algorithm is very promising for DoAestimation because it provides better ...
Added: December 29, 2021
Loginov V., Троегубов А. Ю., Lyakhov A. et al., IEEE Access 2021 P. 146137–146152
To improve the capacity of cellular systems without additional expenses on licensed frequency bands, the 3GPP consortium has designed cellular technologies that use the unlicensed spectrum. The important peculiarity of the usage models of these technologies, the latest of which is New Radio Unlicensed (NR-U), is the coexistence with Wi-Fi networks deployed in the same ...
Added: October 31, 2021
Tutelian S., Bankov D., Shmelkin D. et al., Sensors 2021 Vol. 21 No. 18 Article 6099
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 algorithms. These algorithms should be able to adapt to the changing channel conditions, including the frequency-selective fading. This paper presents an OFDMA ...
Added: October 12, 2021
Zhdanovskiy V., Loginov V., Lyakhov A., Journal of Communications Technology and Electronics 2021 Vol. 66 No. 6 P. 784–795
New Radio-Unlicensed (NR-U) is a technology that allows fifth generation mobile networks to utilize unlicensed frequency bands, in particular, the 5 GHz band. To increase throughput, an NR-U base station (gNB) can simultaneously operate in several frequency channels within the 5 GHz band. However, the gNB cannot always transmit data through one channel and, at ...
Added: October 11, 2021
Loginov V., Khorov E., Lyakhov A. et al., IEEE Transactions on Mobile Computing 2022 Vol. 21 No. 9 P. 3138–3149
To achieve higher throughputs in cellular networks, 3GPP proposes to use unlicensed frequency bands and develops technologies - the latest one is NR-U - allowing a cellular base station to transmit in unlicensed bands, which are already occupied by Wi-Fi networks. To enable fair channel sharing between two technologies, the base station uses a sort ...
Added: March 1, 2021
Stepanova E., Bankov D., Khorov E. et al., IEEE Access 2020 Vol. 8 P. 221061–221076
Energy efficiency is a significant challenge for modern wireless networking devices. It is crucial for the Internet of Things devices, is required for battery-supplied user devices such as smartphones, and is advisable for high-performance devices such as wireless VR headsets. This article examines the ability of modern Wi-Fi devices to achieve extremely low power consumption ...
Added: December 18, 2020
Тутельян С. А., Khorov E., , in: 2018 International Scientific and Technical Conference Modern Computer Network Technologies (MoNeTeC).: IEEE, 2018. P. 1–6.
Non-orthogonal multiple access (NOMA) is a radio access technology that allows significantly improving network performance in scenarios with high heterogeneity. While being typically studied for cellular networks, NOMA can also be used in Wi-Fi networks. This paper proposes a scheduling approach for NOMA-aware resource scheduling in Wi-Fi. This approach is implemented to design NOMA-aware downlink ...
Added: November 27, 2020
Nonorthogonal Multiple Access for Servicing the Internet of Things and Web Traffic in Wi-Fi Networks
Тутельян С. А., Khorov E., Journal of Communications Technology and Electronics 2020 Vol. 65 No. 6 P. 741–749
Nowadays, many devices require a wireless Internet connection, while the available frequency spectrum is limited. The nonorthogonal multiple access (NOMA) is a multiplexing technology that can significantly improve spectral efficiency and thus solve this problem. In this paper, the use of NOMA in Wi-Fi networks with two traffic types, Web traffic and Internet of Things ...
Added: November 27, 2020
Khorov E., Kureev A., Levitsky I. et al., , in: Proceedings of 2020 - IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS 2020).: IEEE, 2020. P. 1332–1333.
Added: November 26, 2020