1 Overview (about 10 pages) 1.1 5G Brief 1.1.1 5G Requirements1.1.2 5G Technology1.2 MIMO Technology1.2.1 MIMO1.2.2 Massive MIMO1.3 Aim of MonographReferences 2 Massive MIMO Technology (about 25 pages) 2.1 Application Scenarios2.1.1 Homogeneous Network Scenarios2.1.2 Heterogeneous Network Scenarios2.2 Physical-Layer Performance2.2.1 Spectrum Efficiency2.2.2 Energy Efficiency2.2.3 Reliability2.3 Networking Technology 2.3.1 Inter-Cell Interference Coordination2.3.1 Scheduling Strategy2.4 SummaryReferences 3 Massive MIMO-Aided Millimeter Communication Networks (about 20 pages) 3.1 Background3.2 Deployment of Millimeter Communications3.2.1 Typical Deployment Scenarios3.2.2 Frame Structure 3.3 MAC and Networking Design3.3.1 Routing in multi-hop HetSNets 3.3.2 Access control and interference coordination3.3.3 mm-wave Softcell Concept3.4 Performance and Discussions3.5 SummaryReferences 4 Massive MIMO-Assistant Energy Transfer Networks(about 20 pages) 4.1 Background4.2 Downlink Hybrid Information and Energy Transfer4.2.1 Downlink HIET System Model4.2.2 Power Allocation Problem for HIET System4.3 Power Allocation of Single Cell Scenario4.3.1 Power Allocation with Perfect CSI4.3.2 Power Allocation with Estimated CSI 4.3.3 Performance Evaluation4.4 Cooperative Energy Transfer of Multi-Cell Scenario4.4.1 Centralized Energy Precoder4.4.2 Distributed Energy Precoder4.4.3 Performance Evaluation4.5 SummaryReferences 5 Conclusion and Outlook(about 5 pages) 5.1 Conclusion5.2 Future Research DirectionsReferences