Устаревание конфигурации RIS в изменяющемся со временем окружении

Информационные процессы. 2023. Т. 23. № 4. С. 612–623.

Буртаков И. А., Горбунова А. О., Kureev A., Khorov E.

Reconfigurable Intelligent Surface (RIS) is a promising technology that can increase the capacity and coverage of wireless networks. The effectiveness of RIS is determined by its configuration, which can be made based on the information about location of the transceiver devices. In practice, there are two main types of RIS configurations: focusing the signal reflected from the RIS at the receiver location and redirecting the signal towards the receiver. Both types of RIS configuration become outdated in time due to changes in environmental parameters caused by movement of transceiver devices and other objects in space. This paper examines outdating of RIS configurations made by focusing and redirection procedure in a system with spatially static transceiver devices. Paper shows that the difference in signal-to-noise ratio for the two types of configurations can reach up to 8 dB and has non-monotonic features that can be explained by considering the near-field region of RIS.

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

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