Экспериментальное исследование реконфигурируемых интеллектуальных поверхностей с обратной связью от пользовательских устройств

Информационные процессы. 2023. Т. 4. № 23. С. 600–611.

Пойда А. И., Глинский К. А., Tyarin A., Kureev A., Khorov E.

Reconfigurable Intelligent Surfaces (RIS) have emerged as a promising technology to enhance the throughput and coverage of wireless networks by adaptively adjusting the phase and amplitude of reflected signals. The conventional approach to configuring RIS relies on transmitting channel state information from a Mobile Station (MS) to a Base Station (BS), with the BS subsequently adjusting the RIS through the BS-RIS communication channel. However, this approach necessitates integrating RIS into the operator’s infrastructure, posing challenges for deployment in existing networks. This paper explores an alternative solution where RIS is configured using a connection with the MS. This approach allows deploying RIS without the need to inform the operator or upgrade the BS. To investigate the feasibility of proposed approach, an autonomous RIS prototype is developed for configuration without BS involvement. Experimental results are conducted in an existing cellular network using the prototype demonstrate a twofold increase in throughput in both uplink and downlink channels. The study reveals that the proposed RIS configuration mechanism can be applied in contention-based access networks, such as Wi-Fi. This alternative approach offers a flexible and efficient solution for deploying RIS technology in various wireless communication scenarios.

Keywords: RIS, 5G, LTE, LTE, 5G, реконфигурируемые интеллектуальные поверхности

Publication based on the results of: Methods for data transmission quality improvement in wireless local area networks using external reconfigurable reflectors (2023)