Massive MIMO Systems for 5G Wireless Networks

Abstract

This thesis proposes two novel pilot allocation schemes in order to mitigate the pilot contamination e ect and to enhance the system performance with low complexity tech- niques of pilot allocation. The thesis is divided into seven chapters as listed below: Chapter 1 provides our motivations towards the fth generation (5G) wireless net- works along with Massive Multiple-Input Multiple-Output (MIMO) technique in order to keep up with the dramatic exponential growth of data tra c. Additionally, a brief introduction exhibits a point-to-point MIMO system, multi-user MIMO system, and massive MIMO system. At the end of the chapter, we provide our contributions in this thesis. Chapter 2 presents an overview of massive MIMO systems; We move from point-to- point MIMO systems to massive MIMO systems passing through multi-user MIMO systems in more details. In addition, the main operations required to work on massive MIMO systems are discussed. Furthermore, we describe the main advantages of mas- sive MIMO systems and their challenges needed to be tackled to make massive MIMO systems a reality such as the pilot contamination e ect.