ABSTRACT
This paper discusses the technique of applying a Zero-Forcing (ZF) precoding technique in a Multiple-Input Multiple-Output (MIMO) system that is relevant to 5G mobile communication technology. To avoid the interference of several transmitted signals and to make easier the recovery process at the receiver side ZF precoding is used. The simulation involves generating random complex symbols as well as a channel matrix, followed by the application of the ZF precoding matrix. The transmitted signals go through the channel and then noise is added to make it resemble those in actual conditions. The received signals are equalized by applying the ZF to recover the code that was transmitted. The performance of the system is analyzed regarding the transmitted, received (with noise), and recovered signals and is depicted in symbol space and the time domain. The results prove that Zero-Forcing drains interference while noise is still evident as a cause of signal distortion. All these findings give hope for the application of ZF precoding in enhancing the signal quality of next-generation communication networks.
