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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 魏宏宇 | zh_TW |
| dc.contributor.advisor | Hung-Yu Wei | en |
| dc.contributor.author | 吳育澤 | zh_TW |
| dc.contributor.author | Yuh-Tser Wu | en |
| dc.date.accessioned | 2025-08-21T16:40:15Z | - |
| dc.date.available | 2025-08-22 | - |
| dc.date.copyright | 2025-08-21 | - |
| dc.date.issued | 2025 | - |
| dc.date.submitted | 2025-08-04 | - |
| dc.identifier.citation | M. A. Jamshed, A. Kaushik, M. Dajer, A. Guidotti, F. Parzysz, E. Lagunas, M. D. Renzo, S. Chatzinotas, and O. A. Dobre, “Non-terrestrial networks for 6g: Integrated, intelligent and ubiquitous connectivity,” 2024. [Online]. Available: https://arxiv.org/abs/2407.02184
B. D. Filippo, B. Ahmad, D. G. Riviello, A. Guidotti, and A. Vanelli-Coralli, “Non-uniform user distribution in non-terrestrial networks with application to user scheduling,” in 2024 IEEE International Mediterranean Conference on Communications and Networking (MeditCom), 2024, pp. 441–446. M. Majamaa, “Toward multi-connectivity in beyond 5g non-terrestrial networks: Challenges and possible solutions,” IEEE Communications Magazine, vol. 62, no. 11, pp. 144–150, 2024. X. Li and B. Shang, “Advancing multi-connectivity in satellite-terrestrial integrated networks: Architectures, challenges, and applications,” IEEE Network, pp. 1–1, 2025. A. Machumilane and A. Gotta, “On dual connectivity in 6g leo constellation,” in 2024 IEEE International Mediterranean Conference on Communications and Networking (MeditCom), 2024, pp. 25–30. M. N. Dazhi, H. Al-Hraishawi, M. R. B. Shankar, and S. Chatzinotas, “Uplink capacity optimization for high throughput satellites using sdn and multi-orbital dual connectivity,” in 2022 IEEE International Conference on Communications Workshops (ICC Workshops), 2022, pp. 544–549. M. López, S. B. Damsgaard, I. Rodríguez, and P. Mogensen, “An empirical analysis of multi-connectivity between 5g terrestrial and leo satellite networks,” in 2022 IEEE Globecom Workshops (GC Wkshps), 2022, pp. 1115–1120. M. López, S. B. Damsgaard, I. Rodríguez, and P. Mogensen, “Connecting rural areas: an empirical assessment of 5g terrestrial-leo satellite multi-connectivity,” in 2023 IEEE 97th Vehicular Technology Conference (VTC2023-Spring), 2023, pp. 1–5. M. Al-Ansi, J. Querol, M. Alsenwi, E. Lagunas, and S. Chatzinotas, “Enhancing handover performance in leo satellite networks with multi-connectivity and conditional handover approach,” in 2024 International Conference on Software, Telecommunications and Computer Networks (SoftCOM), 2024, pp. 1–6. Y. Wu, Y. He, L. P. Qian, J. Huang, and X. Shen, “Optimal resource allocations for mobile data offloading via dual-connectivity,” IEEE Transactions on Mobile Computing, vol. 17, no. 10, pp. 2349–2365, 2018. S. M. Shahid, Y. T. Seyoum, S. H. Won, and S. Kwon, “Load balancing for 5g integrated satellite-terrestrial networks,” IEEE Access, vol. 8, pp. 132 144–132 156, 2020. Y. Sadovaya, O. Vikhrova, S. Andreev, and H. Yanikomeroglu, “Enhancing service continuity in non-terrestrial networks via multi-connectivity offloading,” IEEE Communications Letters, vol. 28, no. 10, pp. 2333–2337, 2024. M. Majamaa, H. Martikainen, L. Sormunen, and J. Puttonen, “Multi-connectivity for user throughput enhancement in 5g non-terrestrial networks,” in 2022 18th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), 2022, pp. 412–418. Q. Ye, B. Rong, Y. Chen, M. Al-Shalash, C. Caramanis, and J. G. Andrews, “User association for load balancing in heterogeneous cellular networks,” IEEE Transactions on Wireless Communications, vol. 12, no. 6, pp. 2706–2716, 2013. K. Alexandris, C.-Y. Chang, K. Katsalis, N. Nikaein, and T. Spyropoulos, “Utility-based resource allocation under multi-connectivity in evolved lte,” in 2017 IEEE 86th Vehicular Technology Conference (VTC-Fall), 2017, pp. 1–6. K. Alexandris, C.-Y. Chang, N. Nikaein, and T. Spyropoulos, “Multi-connectivity resource allocation with limited backhaul capacity in evolved lte,” in 2018 IEEE Wireless Communications and Networking Conference (WCNC), 2018, pp. 1–6. Y. Kim, J. Jang, and H. J. Yang, “Distributed resource allocation and user association for max-min fairness in hetnets,” IEEE Transactions on Vehicular Technology, vol. 73, no. 2, pp. 2983–2988, 2024. W. Wong, A. Thakur, and S.-H. G. Chan, “An approximation algorithm for ap association under user migration cost constraint,” in IEEE INFOCOM 2016 - The 35th Annual IEEE International Conference on Computer Communications, 2016, pp. 1–9. O. Kodheli, N. Maturo, S. Chatzinotas, S. Andrenacci, and F. Zimmer, “Nb-iot via leo satellites: An efficient resource allocation strategy for uplink data transmission,” IEEE Internet of Things Journal, vol. 9, no. 7, pp. 5094–5107, 2022. M. N. Dazhi, H. Al-Hraishawi, M. R. B. Shankar, S. Chatzinotas, and B. Ottersten, “Energy-efficient service-aware multi-connectivity scheduler for uplink multi-layer non-terrestrial networks,” IEEE Transactions on Green Communications and Networking, vol. 7, no. 3, pp. 1326–1341, 2023. X. Sui, Z. Jiang, Y. Lyu, R. Fan, H. Hu, and Z. Liu, “Integrating convex optimization and deep learning for downlink resource allocation in leo satellites networks,” IEEE Transactions on Cognitive Communications and Networking, vol. 10, no. 3, pp. 1104–1118, 2024. Z. Li, Y. Wang, and Y. Liu, “Efficient resource allocation in uav-bs dual connectivity heterogeneous networks,” in 2019 9th International Conference on Information Science and Technology (ICIST), 2019, pp. 234–239. 3GPP, “NR; Radio Resource Control (RRC); Protocol specification,” 3rd Generation Partnership Project (3GPP), Technical Specification (TS) 38.331, 3 2025, version 18.5.1. 3GPP, “NR; Medium Access Control (MAC) Protocol Specification,” 3rd Generation Partnership Project (3GPP), Technical Specification (TS) 38.321, 3 2025, version 18.5.0. Celestrak. (2025) Celestrak site. [Online]. Available: https://celestrak.org/ Orekit. (2025) Orekit documentation. [Online]. Available: https://www.orekit.org/ F. R. Hoots and R. L. Roehrich, “Spacetrack report no. 3 models for propagation of,” 1988. [Online]. Available: https://api.semanticscholar.org/CorpusID:123735719 R. Blázquez-García, D. Cristallini, M. Ummenhofer, V. Seidel, J. Heckenbach, and D. O’Hagan, “Experimental comparison of starlink and oneweb signals for passive radar,” in 2023 IEEE Radar Conference (RadarConf23), 2023, pp. 1–6. J. Garcia, S. Sundberg, G. Caso, and A. Brunstrom, “Multi-timescale evaluation of starlink throughput,” in Proceedings of the 1st ACM Workshop on LEO Networking and Communication, ser. LEO-NET ’23. New York, NY, USA: Association for Computing Machinery, 2023, p. 31–36. [Online]. Available: https://doi.org/10.1145/3614204.3616108 | - |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/99172 | - |
| dc.description.abstract | 在未來6G通訊中，非地面網路是一項關鍵技術，能有效提升全球網路的覆蓋範圍。然而，有鑑於非地面網路的頻譜資源本就較地面網路稀少，當使用者數量隨著技術普及而增加時，其分布也將趨向不均勻，使平衡網路負載成為一大挑戰。為了解決上述問題，本研究提出使用多連線技術(Multi-Connectivity)增加連線的彈性，並建構了一個能同時決定連線與頻寬分配的最佳化問題，其中進一步考量了饋線鏈路(Feeder Link)容量限制與連線更新的成本。為了求解該混合整數非線性規劃問題(Mixed-Integer Nonlinear Programming)，本論文設計了一個分數捨入(fractional rounding)演算法得出次最佳解。經模擬結果驗證，我們的演算法在使用者傳輸量的公平程度與系統總通量都比基本的連線分配方法有更佳的表現。 | zh_TW |
| dc.description.abstract | Non-Terrestrial Network (NTN) plays a crucial role in the future 6G to provide ubiquitous coverage. However, as the number of users increases, the uneven distribution of user terminals (UTs) poses a challenge to balance the network load. To efficiently allocate the scarce resource in NTN, we propose to introduce diversity by Multi-Connectivity (MC) and formulate a joint user association and bandwidth allocation optimization problem considering feeder link (FL) capacity and association addition/migration cost. To cope with the mixed-integer nonlinear programming (MINLP), a fractional rounding algorithm is presented. The simulation results show the superiority of our proposed scheme over baselines in terms of user data rate fairness and total system throughput. | en |
| dc.description.provenance | Submitted by admin ntu (admin@lib.ntu.edu.tw) on 2025-08-21T16:40:14Z No. of bitstreams: 0 | en |
| dc.description.provenance | Made available in DSpace on 2025-08-21T16:40:15Z (GMT). No. of bitstreams: 0 | en |
| dc.description.tableofcontents | 口試委員會審定書 i
誌謝 ii 摘要 iii Abstract iv Contents v List of Figures vii List of Tables ix Chapter 1. Introduction 1 Chapter 2. Related Work 3 Chapter 3. System Model 5 Chapter 4. Problem Formulation 9 Chapter 5. Proposed Solution 13 5.1 Problem Relaxation 13 5.2 Fractional Rounding Algorithm 14 Chapter 6. Evaluation Framework 17 6.1 Channel Model 17 6.1.1 Uplink (Access Link) 17 6.1.2 Downlink (Feeder Link) 18 6.2 Ephemeris Generation 19 6.3 User Terminal Distribution 20 6.4 Comparison Schedulers 20 6.5 Simulation Settings 21 Chapter 7. Evaluation Results 27 7.1 Comparison of Different Schedulers 27 7.2 Dual-orbit Network 32 7.3 Density of User Terminals 35 7.4 Link Addition/Migration Cost Values 39 7.5 Poisson Traffic Evaluation 40 Chapter 8. Conclusions and Future Directions 47 Bibliography 49 | - |
| dc.language.iso | en | - |
| dc.subject | 低軌道衛星 | zh_TW |
| dc.subject | 非地面網路 | zh_TW |
| dc.subject | 控制信號成本 | zh_TW |
| dc.subject | 負載均衡 | zh_TW |
| dc.subject | 多連線技術 | zh_TW |
| dc.subject | Multi-Connectivity (MC) | en |
| dc.subject | Load Balancing | en |
| dc.subject | Signaling Cost | en |
| dc.subject | Low Earth Orbit (LEO) Satellites | en |
| dc.subject | Non-Terrestrial Network (NTN) | en |
| dc.title | 以多連線技術均衡低軌道衛星網路之負載 | zh_TW |
| dc.title | Multi-Connectivity-Enabled Load Balancing in LEO Satellite Networks | en |
| dc.type | Thesis | - |
| dc.date.schoolyear | 113-2 | - |
| dc.description.degree | 碩士 | - |
| dc.contributor.oralexamcommittee | 蔡華龍;施美如;葉佳宜;黃道宏 | zh_TW |
| dc.contributor.oralexamcommittee | Hua-Lung Tsai;Mei-Ju Shih;Chia-Yi Yeh;Dow-Hon Huang | en |
| dc.subject.keyword | 非地面網路,低軌道衛星,多連線技術,負載均衡,控制信號成本, | zh_TW |
| dc.subject.keyword | Non-Terrestrial Network (NTN),Low Earth Orbit (LEO) Satellites,Multi-Connectivity (MC),Load Balancing,Signaling Cost, | en |
| dc.relation.page | 52 | - |
| dc.identifier.doi | 10.6342/NTU202501584 | - |
| dc.rights.note | 同意授權(限校園內公開) | - |
| dc.date.accepted | 2025-08-07 | - |
| dc.contributor.author-college | 電機資訊學院 | - |
| dc.contributor.author-dept | 電信工程學研究所 | - |
| dc.date.embargo-lift | 2025-08-22 | - |
| 顯示於系所單位： | 電信工程學研究所 | |
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