Reconfigurable Intelligent Surface Assisted 5G NR uplink

Reconfigurable intelligent surfaces (RIS) have the ability to steer the electromagnetic waves to a desired direction. This enables the improvement of the wireless link performance by allowing the illumination of receivers otherwise shadowed by buildings or hills. In this paper, a link level simulations are used to study the performance improvement offered by a RIS in a 5G NR uplink. Two different scenarios are considered. In the firs case, the distance between the transmitter and receiver is 100 m and in the second case 150 m. In both cases the distance between the transmitter and RIS is 20 m. Results show that the RIS gain increases when the distance between the TX and RX is increased.