Physical layer security for massive MIMO systems

The chapter is organised as follows. In Sections 5.1 and 5.2, we briefly review the fundamentals of massive MIMO and physical layer security, respectively. In Section 5.3, we motivate the chapter by illustrating why we consider physical layer security for massive MIMO systems. The considered model and the performance evaluation metrics for secure massive MIMO systems are introduced in Sections 5.4 and 5.5, respectively. Section 5.6 studies linear precoding for downlink secure massive MIMO transmission. In Section 5.7, we conclude with abrief summary of this chapter.