Non-Transparent Relays in a Large Scale MIMO System
Carmen Voicu, Madalina Georgiana Berceanu, Simona Viorica Halunga · 2018
In nowadays wireless systems, all active users, who are sharing the same cell, would like to have the same quality of service regardless their position in the cell, fading or other obstacles that might be placed between them and the base station (BS). A solution for this is to use relays in order to increase the capacity, to enlarge the coverage area of a base station and to improve the overall performance of the system. In this paper, we analysed the performance of a multiuser Massive MIMO system when a decode-and-forward (DF) relay protocol is used to direct the user's data to destination. The simulations show that the relay can improve the quality of data received at the BS, but the number of active users must be corelated with the number of antennas installed at the relay.