DGIST Scholar: Efficient Transmission Techniques for Emerging 3D Wireless Networks

Department of Electrical Engineering and Computer Science Theses Ph.D.

Cited time in webofscience

Cited time in scopus

Efficient Transmission Techniques for Emerging 3D Wireless Networks

Title: Efficient Transmission Techniques for Emerging 3D Wireless Networks

Alternative Title: 차세대 3차원 공간 무선 네트워크를 위한 효율적인 전송 기법

Author(s): Chanwon Park

DGIST Authors: Chanwon Park ; Jeongho Kwak ; Jemin Lee

Advisor: 곽정호

Co-Advisor(s): Jemin Lee

Issued Date: 2023

Awarded Date: 2023-08-01

Type: Thesis

Description: 3-dimensional wireless network; base station activation; transmit power allocation; base station cooperation; reconfigurable intelligent surface; 3차원 공간 무선 네트워크; 기지국 활성화; 송신 전력 할당; 기지국 협력 통신; 지능형 재구성 안테나

Table Of Contents: I. INTRODUCTION 1
1.1 Objectives of the Dissertation 1
1.2 Prior Works and Motivations 3
1.2.1 Base Station Activation 3
1.2.2 Reconfigurable Intelligent Surface-Assisted Network 4
1.3 Contributions of the Dissertation 5
1.4 Outline of the Dissertation 5
II. Base Station Activation Scheme for 3D Wireless Networks 7
2.1 Contribution of This Chapter 7
2.2 System Model 7
2.2.1 CUDN Channel and LoS Probability Model 8
2.2.2 BS Cooperation Model for CoMP 9
2.2.3 Importance-based BS Activation Scheme 9
2.2.4 SINR from CoMP Transmission 11
2.2.5 Performance Metric 11
2.3 BS Activation Probability Analysis 13
2.4 Coverage Probability Analysis 15
2.4.1 Coverage Probability 15
2.4.2 Area Spectral Efficiency 17
2.5 Numerical Results & Discussions 17
2.5.1 Impact of Total BS Density 18
2.5.2 Impact of Activation Threshold 20
2.6 Appendix 25
2.6.1 Proof of Approximation 1 25
2.6.2 Proof of Theorem 1 27
2.6.3 Proof of Proposition 2 29
2.6.4 Proof of Theorem 2 30
III.Joint User Association and Power Allocation Scheme for 3D Wireless Networks 32
3.1 Contribution of This Chapter 32
3.2 System Model 32
3.2.1 Channel Model 34
3.2.2 Transmission Rate Model 35
3.2.3 RIS Beamforming Model 36
3.3 Optimization Problem Maximizing the Sum Rate of Users 37
3.3.1 Problem Formulation 37
3.3.2 Aerial User Association 38
3.3.3 Transmit Power Allocation 40
3.3.4 Joint User Association and Power Allocation 41
3.4 Numerical Results & Discussions 41
IV.CONCLUSIONS 47
4.1 Dissertation Summary 47
4.2 Further Research Issues 48
References 49