Design and BER Performance Analysis of MIMO and Massive MIMO Networks under Perfect and Imperfect CSI

With upcoming 5G networks, higher data rate and higher capacity are required for a commercial wireless communication system. This has attracted huge interest and formed a substantial research challenge in the context of the emerging WLANs and many multimedia networks. After sternly affecting bit error rate of communication system, multipath fading in wireless communication system also gives weak signal strength. Multi input- multi output (MIMO) and Massive MIMO system is used to overcome this drawback. Multiple antennas are used to gives a higher data rate, higher transmit and receive diversity through spatial multiplexing in a wireless communication system. On the other hand, massive MIMO technology allows expo-sure to numerous users in the same time-frequency block with the help of the base station having a large number of antennas. This research paper presents the salient features of MIMO and massive MIMO networks and investigates its BER performance under AWGN (white Gaussian noise) and Rayleigh fading communication channel under the effects of perfect and imperfect channel state information (CSI) modes, along with the consideration of trials and prospects.