A Detailed investigation of Pre-Coder Design in Massive MIMO and Comparing Different Precoder Schemes

Abstract

The practical implementation of massive MIMO will enhance the performance of applications according to requirements. But, in order to obtain an optimal performance from the massive MIMO system lies on various different factors such as precoding scheme, resource scheduling and others. In this paper, we are investigating how the different precoding techniques are influencing the performance of massive MIMO system’s performance. Therefore, a keen review on existing and recent literature has been conducted to identify the recent trends and techniques for adopting the precoding techniques. Next, the investigation involves the employment and experimental analysis of the two classical and popular precoders namely Zero Forcing (ZF) precoder and Wiener filter (WF) precoder. In addition, a recently available precoding technique namely Matched-Filter (MF) has also been evaluated experimentally. The simulation has been done and the tread off between signal to noise ratio (SNR) and bit error rate (BER) has been reported. According to the performed experimental evaluation the BER is reducing with the increasing SNR.