30th Signal Processing and Communications Applications Conference, SIU 2022, Safranbolu, Turkey, 15 - 18 May 2022
© 2022 IEEE.New generation wireless communication technologies require a higher data rates day by day. Since low frequencies are mostly in use, it is necessary to go to higher frequencies in order to reach the required bandwidth. High frequencies are more affected by path losses than lower frequencies, therefore it becomes logical to use systems that increase signal strength at the receiver, such as amplify and forward (AF), decode and forward (DF), and reconfigurable intelligent surfaces (RIS). Considering all this information, relay and reconfigurable intelligent surfaces are compared for 28 GHz band which is experimental models are made, frequently used in literature, and mostly standardised. By comparing the bit error rate and energy consumption, it is investigated which systems would be more efficient to use under which scenarios, and the results were supported by simulations.