| ABSTRACT | 第5-7页 |
| 摘要 | 第8-13页 |
| List of Symbols | 第13-14页 |
| List of Abbreviations | 第14-19页 |
| CHAPTER 1 INTRODUCTION | 第19-33页 |
| 1.1 Background of Millimeter Wave Communications | 第19-22页 |
| 1.1.1 Millimeter Wave Communications | 第19-20页 |
| 1.1.2 Potential Technologies in Mm Wave Communications | 第20-22页 |
| 1.2 Motivations of this Dissertation | 第22-25页 |
| 1.2.1 Challenges of Beamforming Design in mm Wave Systems | 第22-23页 |
| 1.2.2 Beamforming Architectures | 第23-25页 |
| 1.3 Limitations of the Related Works | 第25-27页 |
| 1.3.1 Full-Digital Beamforming | 第25-26页 |
| 1.3.2 Hybrid Beamforming | 第26-27页 |
| 1.4 Contributions of the Dissertation | 第27-30页 |
| 1.5 Organization of the Dissertation | 第30-33页 |
| CHAPTER 2 Joint Source and Relay Full-Digital Beamforming in Single-User Mil-limeter Wave Systems | 第33-61页 |
| 2.1 Motivations | 第33-34页 |
| 2.2 Millimeter Wave Channel Model | 第34-36页 |
| 2.3 Full-Digital Beamforming Based Millimeter Wave System Description | 第36-38页 |
| 2.4 Joint Source and Relay Full-Digital Beamforming Problem Formulation | 第38-39页 |
| 2.4.1 Original Joint Full-Digital Beamforming Problem Formulation | 第38页 |
| 2.4.2 Equivalent Sparse Problem for Joint Full-Digital Beamforming Prob-lem | 第38-39页 |
| 2.5 Reformulation of the Two Subproblems | 第39-44页 |
| 2.5.1 Full-Digital Source Beamforming Subproblem | 第39-41页 |
| 2.5.2 Full-Digital Relay Beamforming Subproblem | 第41-44页 |
| 2.6 Proposed Algorithms to Design the Full-Digital Beamformers | 第44-56页 |
| 2.6.1 Random Vector Generation based Interior-Point Method Algorithm | 第44-46页 |
| 2.6.2 Low-Rank based Augmented Lagrangian Function Algorithm | 第46-51页 |
| 2.6.3 Complexity Analysis of Two Proposed Algorithms | 第51-52页 |
| 2.6.4 Optimality Analysis of the Proposed Beamforming Design based onRVG-IPM Algorithm | 第52-55页 |
| 2.6.5 Convergence Analysis | 第55-56页 |
| 2.7 Simulation Results | 第56-59页 |
| 2.7.1 Parameters | 第56-57页 |
| 2.7.2 Comparison of the Different Algorithms | 第57-58页 |
| 2.7.3 Convergence Results | 第58-59页 |
| 2.8 Summary | 第59-61页 |
| CHAPTER 3 Relay Hybrid Beamforming Design in Single-User Millimeter WaveSystems | 第61-89页 |
| 3.1 Motivations | 第61-62页 |
| 3.2 Relay Hybrid Beamforming System Description | 第62-65页 |
| 3.2.1 Relay Hybrid Beamforming System Model | 第62-65页 |
| 3.3 MMSE-Based Relay Hybrid Precoding Design | 第65-69页 |
| 3.3.1 Original MMSE-Based Relay Hybrid Precoding Problem | 第65-66页 |
| 3.3.2 Reformulation of The MMSE Problem | 第66-69页 |
| 3.4 Proposed Iterative Successive Approximation Algorithm | 第69-76页 |
| 3.4.1 Closed-Form Solution to (P1) | 第69-70页 |
| 3.4.2 Convex Approximations of (P2) and (P3) | 第70-72页 |
| 3.4.3 ISA Application in Full-Connected Structure | 第72-74页 |
| 3.4.4 Convergence Analysis | 第74页 |
| 3.4.5 Optimality Analysis | 第74-76页 |
| 3.5 Phased-MSE Algorithm for Sub-Connected Structures | 第76-82页 |
| 3.5.1 P-MSE Algorithm Procedure | 第76-78页 |
| 3.5.2 Complexity Analysis of the Proposed ISA Algorithm and P-MSEAlgorithm | 第78-80页 |
| 3.5.3 Power Efficiency | 第80-82页 |
| 3.6 Numerical Simulations | 第82-86页 |
| 3.6.1 Comparison of Different Beamforming Schemes | 第83-84页 |
| 3.6.2 Comparison the Power Efficiency of the Two Beamforming Archi-tectures | 第84-85页 |
| 3.6.3 Effects of number of data streams | 第85页 |
| 3.6.4 Convergence Results | 第85-86页 |
| 3.7 Summary | 第86-89页 |
| CHAPTER 4 Hybrid Beamforming for Multi-User Millimeter Wave Relay Systems | 第89-103页 |
| 4.1 Motivations | 第89页 |
| 4.2 Multi-User Mm Wave Systems | 第89-91页 |
| 4.3 Full-Digital Beamforming for Multi-User Mm Wave Systems | 第91-93页 |
| 4.4 Sum Rate Maximization Problem | 第93-94页 |
| 4.5 Proposed Hybrid Beamforming Algorithm | 第94-98页 |
| 4.5.1 Matching Pursuit Algorithm | 第95-96页 |
| 4.5.2 Step 1: Hybrid Beamformers for the Users | 第96-97页 |
| 4.5.3 Step 2: Hybrid Beamformers at the Relay | 第97页 |
| 4.5.4 Step 3: Hybrid Beamforers at the Base Station | 第97-98页 |
| 4.6 Simulation Results | 第98-100页 |
| 4.6.1 Comparison of Full-Digital and Hybrid Beamformings | 第99页 |
| 4.6.2 Effect of Number of RF chains | 第99-100页 |
| 4.6.3 Effect of the Ao A and Ao D estimation errors | 第100页 |
| 4.7 Summary | 第100-103页 |
| CHAPTER 5 CONCLUSIONS AND FUTURE WORKS | 第103-107页 |
| 5.1 Summary of Accomplished Work | 第103-104页 |
| 5.2 Further Work | 第104-107页 |
| APPENDIX PROOF OF THEOREMS | 第107-111页 |
| A.1 Joint Source and Relay Beamforming in Multi-antenna Millimeter-wave Sys-tems | 第107-108页 |
| A.1.1 Proof of Convergence for iterative algorithm of Table 2.3 | 第107-108页 |
| A.2 Relay Hybrid Beamforming Design in Millimeter-Wave Massive MIMOSystems | 第108-111页 |
| A.2.1 Proof of Lemma 3.1 | 第108-109页 |
| A.2.2 Proof of Lemma 3.3 | 第109-111页 |
| REFERENCES | 第111-121页 |
| ACKNOWLEDAGEMENTS | 第121-123页 |
| RESUME | 第123-125页 |
