Title Page
VITA
List of Publications
ABSTRACT
Contents
Notations and Abbreviations 16
Chapter 1. Introduction 17
1.1. Visible light communication 17
1.2. Realted works and motivation 19
1.3. Contribution 22
1.4. Thesis Organization 23
Chapter 2. SPC-NOMA VLC system 24
2.1. Premilinary 24
2.1.1. System model 24
2.1.2. Short packet communication (SPC) 26
2.1.3. NOMA in VLC systems 28
2.1.4. OMA in VLC systems 31
2.1.5. VLC channel and distribution of received signal-to-noise ratio 31
2.2. Performance analysis 34
2.2.1. Average BLER in VLC systems 34
2.2.2. SPC in NOMA VLC systems 36
2.2.3. SPC in OMA VLC systems 38
2.3. Numerical results 39
Chapter 3. Optimal sum throughput design 47
3.1. Optimization problem 47
3.2. Optimal design 48
3.3. Results 51
Chapter 4. Conclusions 54
Appendices 55
Appendix A. Proof of proposition 3.2.1 55
Appendix B. Proof of proposition 3.2.2 57
Appendix C. Proof of Lemma 3.2.4 58
Appendix D. Proof of Lemma 3.2.5 60
Bibliography 62
Table 2.1. SIMULATION PARAMETERS 39
Figure 2.1. Illustration of the SPC-LPC in NOMA and OMA VLC system. (a) Proposed overall system model with VLC. (b) NOMA and OMA transmission. (c)... 25
Figure 2.2. Principle of the two-user NOMA and VLC systems. 29
Figure 2.3. Average BLER comparison between NOMA versus OMA using SPC with different power allocation strategies. 40
Figure 2.4. SPC and LPC for NOMA VLC. 42
Figure 2.5. The reliability of the SPC in NOMA and OMA VLC system. 43
Figure 2.6. Latency comparison between NOMA versus OMA using SPC. 44
Figure 2.7. Throughput of SPC for NOMA and OMA. 45
Figure 2.8. The sum throughput for different values of semi-angles at different SNR. 46
Figure 3.1. Sum throughput as the function of the power allocation for U₂ at γTx=126 dB, R₁=0.4, and R₂=0.35.[이미지참조] 50
Figure 3.2. Sum throughput for the near user and the maximum throughput point (R₂,R₁,T)=(1.2,0.5,1.17), γTx=126 dB.[이미지참조] 51