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Preface; Contents; Acronyms; 1 Introduction ; 1.1 Motivations; 1.1.1 Wireless Networks: Trends and Challenges; 1.1.2 VWN: Requirements; 1.1.3 VWN: User-Association and Resource-Allocation Issues; 1.2 Emerging Technologies: A Brief Overview; 1.2.1 User-Association and Resource-Allocation; 1.2.2 Cloud-Radio Access Network (C-RAN); 1.2.3 Massive MIMO; 1.2.4 Non-orthogonal Multiple Access (NOMA); 1.3 Structure of This Brief; References; 2 Bandwidth-Efficient Joint User-Association and Resource-Allocation in Multi-Cell VWN ; 2.1 Introduction; 2.2 System Model and Problem Formulation.
2.3 Proposed Two-Level Iterative Algorithm2.3.1 User-Association Problem ; 2.3.2 Power-Allocation Problem; 2.4 Numerical Results and Discussions; 2.4.1 System Parameters; 2.4.2 Reference Resource Allocation; 2.4.3 Total Rate and Rate-Outage Evaluation; 2.4.4 Coverage Analysis; 2.4.5 Optimality Gap Study; 2.4.6 Computational Complexity and Convergence Analysis; 2.5 Concluding Remarks; References; 3 Power-Efficient Joint User-Association and Resource-Allocation in Multi-Cell VWN ; 3.1 Introduction; 3.2 System Model and Problem Formulation; 3.3 Proposed Algorithm; 3.3.1 User-Association Problem.
3.3.2 Power Minimization Problem3.4 Numerical Results and Discussions; 3.5 Concluding Remarks; References; 4 Uplink Resource-Allocation in VWN with Massive-MIMO and Dynamic Pilot-Duration ; 4.1 Introduction; 4.2 System Model and Problem Formulation; 4.3 Iterative Algorithm for Joint Resource and Adaptive Pilot Duration Allocation; 4.4 Numerical Results and Discussions; 4.5 Concluding Remarks; References; 5 User-Association and Resource-Allocation in a C-RAN-Based VWN ; 5.1 Introduction; 5.2 System Model; 5.3 Proposed Two-Level Iterative Algorithm; 5.3.1 Association Algorithm.
5.3.2 RRH Adjusting Algorithm5.4 Numerical Results and Discussions; 5.4.1 System Parameters; 5.4.2 Performance Analysis; 5.5 Concluding Remarks; References; 6 Resource Allocation in a NOMA-Based VWN ; 6.1 Introduction; 6.2 System Model; 6.2.1 NOMA; 6.2.2 OFDMA; 6.3 Proposed Algorithm; 6.3.1 Iterative Algorithm for NOMA-Based ResourceAllocation; 6.3.2 Dual Approach for OFDMA-Based Resource Allocation; 6.4 Numerical Results and Discussions; 6.5 Concluding Remarks; References; 7 Conclusion ; 7.1 Summary; 7.2 Potential Future Works.
Appendix Brief Notes on Geometric Programmingand Successive Convex ApproximationA. 1 Introduction to Geometric Programming; A.1.1 Monomial and Posynomial Function; A.1.2 Arithmetic-Geometric Mean Approximation; A.1.3 Geometric Programming; A.1.4 Complementary Geometric Programming; A.2 Multi-Block Successive Convex Approximation; References.
2.3 Proposed Two-Level Iterative Algorithm2.3.1 User-Association Problem ; 2.3.2 Power-Allocation Problem; 2.4 Numerical Results and Discussions; 2.4.1 System Parameters; 2.4.2 Reference Resource Allocation; 2.4.3 Total Rate and Rate-Outage Evaluation; 2.4.4 Coverage Analysis; 2.4.5 Optimality Gap Study; 2.4.6 Computational Complexity and Convergence Analysis; 2.5 Concluding Remarks; References; 3 Power-Efficient Joint User-Association and Resource-Allocation in Multi-Cell VWN ; 3.1 Introduction; 3.2 System Model and Problem Formulation; 3.3 Proposed Algorithm; 3.3.1 User-Association Problem.
3.3.2 Power Minimization Problem3.4 Numerical Results and Discussions; 3.5 Concluding Remarks; References; 4 Uplink Resource-Allocation in VWN with Massive-MIMO and Dynamic Pilot-Duration ; 4.1 Introduction; 4.2 System Model and Problem Formulation; 4.3 Iterative Algorithm for Joint Resource and Adaptive Pilot Duration Allocation; 4.4 Numerical Results and Discussions; 4.5 Concluding Remarks; References; 5 User-Association and Resource-Allocation in a C-RAN-Based VWN ; 5.1 Introduction; 5.2 System Model; 5.3 Proposed Two-Level Iterative Algorithm; 5.3.1 Association Algorithm.
5.3.2 RRH Adjusting Algorithm5.4 Numerical Results and Discussions; 5.4.1 System Parameters; 5.4.2 Performance Analysis; 5.5 Concluding Remarks; References; 6 Resource Allocation in a NOMA-Based VWN ; 6.1 Introduction; 6.2 System Model; 6.2.1 NOMA; 6.2.2 OFDMA; 6.3 Proposed Algorithm; 6.3.1 Iterative Algorithm for NOMA-Based ResourceAllocation; 6.3.2 Dual Approach for OFDMA-Based Resource Allocation; 6.4 Numerical Results and Discussions; 6.5 Concluding Remarks; References; 7 Conclusion ; 7.1 Summary; 7.2 Potential Future Works.
Appendix Brief Notes on Geometric Programmingand Successive Convex ApproximationA. 1 Introduction to Geometric Programming; A.1.1 Monomial and Posynomial Function; A.1.2 Arithmetic-Geometric Mean Approximation; A.1.3 Geometric Programming; A.1.4 Complementary Geometric Programming; A.2 Multi-Block Successive Convex Approximation; References.