Performance enhancement of linear precoder for mimo system with imperfect csi

Abstract

Linear precoding technique is essential to eliminate or minimize the newlineMulti User Interference MUI in Multi User Multi Input Multi Output MUMIMO systems Precoding is a digital signal processing technique which newlineexploits the channel information available at the transmitter by processing the newlinetransmitting signal before transmission Depending upon the nature of newlineChannel State Information CSI available at the Transmitter CSIT the newlineperformance of the linear precoders will vary In practice it is difficult to newlineobtain the perfect CSI during the channel estimation process In this thesis it newlineis assumed that the CSI available at the Base Station BS is imperfect newline newline