Об использовании многоканальных методов доступа для обслуживания приложений реального времени в сетях Wi-Fi

Информационные процессы. 2021. Т. 21. № 3. С. 162–173.

Bankov D., Lyakhov A., Khorov E., Чемров К. С.

Serving real-time applications, such as virtual and augmented reality, remote control and video streamin, is an important use case for next-generation Wi-Fi networks. To achieve it, the currently developed IEEE 802.11be (Wi-Fi 7) standard introduces several new features that can guarantee low latency. One of such innovations is the support for the simultaneous transmission and reception of information by a device in multiple frequency channels or multi-link, which will enable more flexible usage of channel resources and mapping of different kinds of traffic to different channels. In this work, we study various methods of multilink transmissions to serve the real-time traffic along with delay-insensitive traffic. Compared approaches are based on a separate channel for service frames, adjustment of special medium access parameters, and the allocation of a separate channels only for urgent traffic. Obtained results show, that for each method, there is a scenario in which it is optimal in terms of meeting the requirements of real-time applications and the efficiency of simple devices.

Keywords: надежность, reliability, wireless networks, Real-time applications, Приложения реального времени, IEEE 802.11be, Wi-Fi 7, multi-link, low latency, беспроводная локальная сеть, Wi-Fi 7, многоканальный доступ, низкая задержка