基於 Zadoff-Chu 序列之低軌衛星通信系統定時提前與載波頻率偏移估測研究

以作者查詢圖書館館藏

、以作者查詢臺灣博碩士

、以作者查詢全國書目

、勘誤回報

、線上人數：89

、訪客IP：3.144.230.82

姓名

邱若寧(Jo-Ning Chiu) 查詢紙本館藏

畢業系所

通訊工程學系

論文名稱

基於 Zadoff-Chu 序列之低軌衛星通信系統定時提前與載波頻率偏移估測研究
(Delay and Carrier Frequency Offset Estimation with Zadoff-Chu Sequence in LEO Satellite Communication System)

相關論文

★ 利用手持式手機工具優化行動網路系統於特殊型活動環境	★ 穿戴裝置動態軌跡曲線演算法設計
★ 石英諧振器之電極面設計對振盪頻率擾動之溫度相依性研究	★ 股票開盤價漲跌預測
★ 感知無線電異質網路下以不完美頻譜偵測進行資源配置之探討	★ 大數量且有限天線之多輸入多輸出系統效能分析
★ 具有元學習分類權重轉移網路生成遮罩於少樣本圖像分割技術	★ 具有注意力機制之隱式表示於影像重建三維人體模型
★ 使用對抗式圖形神經網路之物件偵測張榮	★ 基於弱監督式學習可變形模型之三維人臉重建
★ 以非監督式表徵分離學習之邊緣運算裝置低延遲樂曲中人聲轉換架構	★ 基於序列至序列模型之 FMCW雷達估計人體姿勢
★ 基於多層次注意力機制之單目相機語意場景補全技術	★ 應用於3GPP WCDMA-FDD上傳鏈路系統的遞迴最小平方波束合成犛耙式接收機
★ 調適性遠時程瑞雷衰退通道預測演算法設計與性能比較	★ 智慧型天線之複合式到達方位-時間延遲估測演算法及Geo-location應用

檔案

[Endnote RIS 格式]

[Bibtex 格式]

[相關文章]

[文章引用]

[完整記錄]

[館藏目錄]

至系統瀏覽論文 (2027-1-3以後開放)

摘要(中)

由於成本及地理環境等多項挑戰，單純依賴陸地網路(TN)難以實現全球性覆蓋。因此，3GPP提出以衛星通訊系統做為TN的補充，為TN服務能力不足的區域提供可靠的互聯網接入服務。然而，衛星與移動終端之間的相對速度較高，所以衛星通訊訊號會遭受嚴重的都普勒偏移，且延遲估計容易受到都普勒偏移影響。因此本篇論文提出了低軌衛星(Low Earth Orbit)通訊系統中，基於Zadoff-Chu序列所設計的延遲與載波頻率偏移估測方法。本方法是利用接收訊號與Zadoff-Chu序列進行相關性運算所得到的峰值，進一步進行延遲及都普勒偏移的估計。
模擬結果表明，本文提出的估測方法能夠在都普勒偏移大的低軌衛星通訊系統中達到良好的表現，能夠在較低的訊雜比就達到1%的漏檢率(Missed Detection Rate)，且在滿足1%漏檢率的狀況下，達到較低的定時提前及都普勒偏移估計的均方誤差(Mean Square Error)。

摘要(英)

Due to various challenges such as cost and geographical environments, it is difficult to only rely on terrestrial networks (TN) to achieve global coverage. Therefore, 3GPP proposed the utilization of satellite communication systems to support TN, and provide reliable internet access services in areas where TN coverage is unavailable. However, there are significant Doppler shifts in the Low Earth orbit (LEO) satellite communication systems due to their high relative velocities with user equipment and base station. The Doppler shifts also influence the delay estimation.
Consequently, to overcome this problem, this study presents a delay and carrier frequency offset estimation method designed for LEO satellite communication systems by utilizing Zadoff-Chu sequence. This method leverages the correlation between the received signal and Zadoff-Chu sequence to estimate delay and Doppler shifts.
The simulation results show the effectiveness of the proposed estimation algorithm performs in LEO satellite communication systems with significant Doppler shifts. It can achieve 1% missed detection rate at relatively low Signal-to-Noise Ratio. Furthermore, it exhibits lower mean square error in delay and Doppler offset estimation while 1% missed detection rate.

關鍵字(中)

★ 低軌道衛星通訊系統
★ 載波頻率偏移
★ Zadoff-Chu (ZC) 序列
★ 前導碼

關鍵字(英)

★ low earth orbit (LEO) satellite communication systems
★ carrier frequency offset (CFO)
★ Zadoff-Chu (ZC) sequence
★ preamble

論文目次

Contents
論文摘要......ii
Abstract......iii
致謝......iv
Contents......v
List of Figures......vi
List of Tables......vi
Chapter 1. Introduction......1
1.1. Satellite Communication......1
1.2 Preamble......3
1.3 Zadoff-Chu Sequence......5
1.4 Organization......7
1.5 Abbreviations......8
1.6 Notation......9
Chapter 2. System Model......11
2.1. Transmitter......11
2.2. Channel Model......17
2.3. Receiver......18
Chapter 3. Iterative Fractional Frequency Offset Compensation......20
Chapter 4. Proposed Algorithm Scheme......23
4.4.1 Proposed Fractional Frequency Offset Estimation......24
4.4.2 Proposed Delay and Integer Frequency Offset Estimation......27
4.4.3 Estimating the Carrier Frequency Offset......33
4.4.4 Procedure of Proposal......34
4.4.5 Computational Complexity of Proposed Algorithm......36
Chapter 5. Preamble Detection......38
4.5.1 Transmitted Preamble Detection......38
4.5.2 Detection Threshold......40
4.5.3 Miss Detection Rate......42
Chapter 6. Simulation Results......43
6.1 Performance of Fractional Frequency Offset Estimation......45
6.2 Performance of Proposed Algorithm......52
Chapter 7. Conclusion......58
References......59

List of Figures
Fig 2.1 The block diagram of the system......11
Fig 2.2 LEO satellite beam edge cell link diagram [3].......13
Fig 2.3 The structure of the training block.......15
Fig 2.4 The architecture of satellite system [15].......17
Fig 4.1 Correlation between ZC sequence and received signal with different CFO.......24
Fig 4.2 Block diagram of the proposed procedure......34
Fig 6.1 Block diagram of the method that estimates FFO using the CP part.......47
Fig 6.2 The MDR when comparing the FFO estimation method under different CFO scenarios.......48
Fig 6.3 The MSE of CFO estimation when comparing the FFO estimation method under different CFO scenarios.......50
Fig 6.4 The MDR for comparing the method that mitigates the effect caused by FFO.......51
Fig 6.5 The MDR of the proposed algorithm compared with existing scheme of [18].......53
Fig 6.6 The MDR of the proposed algorithm compared with existing scheme of [15].......54
Fig 6.7 The MSE of delay estimation when comparing the proposed algorithm with existing scheme of [15].......55
Fig 6.8 The MDR of the proposed algorithm under different CFO scenarios.......56
Fig 6.9 The CDF of the CFO estimation error of the proposed algorithm under different CFO scenarios.......57

List of Tables
Table 1.1 List of abbreviations used in the thesis.......8
Table 1.2 List of Parameters used in the thesis.......9
Table 6.1 The parameters for system configuration......44

參考文獻

[1] M. M. Azari et al., "Evolution of Non-Terrestrial Networks From 5G to 6G: A Survey," in IEEE Communications Surveys & Tutorials, vol. 24, no. 4, pp. 2633-2672, Fourthquarter 2022.
[2] 3GPP TR 22.822, “Study on using satellite access in 5G (Release 16).” version no. V16.0.0, June 2018.
[3] Z. Zheng, D. Wang, L. Liu, B. Wang and C. Sun, "Robust Random Access Preamble Detection Scheme for 5G Integrated LEO Satellite Communication Systems," 2022 IEEE 22nd International Conference on Communication Technology (ICCT), Nanjing, China, 2022, pp. 463-467.
[4] 3GPP TR 38.811, “Study on New Radio (NR) to support non-terrestrial networks (Release 15).” version no. V15.4.0, September 2020.
[5] 3GPP TR 38.821, “Solutions for NR to support non-terrestrial networks (NTN) (Release 16).” version no. V16.0.0, January 2020.
[6] X. Lin, B. Hofström, E. Wang, G. Masini, H.-L. Maattanen, H. Rydén, J. Sedin, M. Stattin, O. Liberg, S. Euler, et al., “5G New Radio evolution meets satellite communications: Opportunities, challenges, and solutions,” 5G and Beyond: Fundamentals and Standards, 2021, pp.517-531.
[7] T. A. Khan and M. Afshang, "A Stochastic Geometry Approach to Doppler Characterization in a LEO Satellite Network," ICC 2020 - 2020 IEEE International Conference on Communications (ICC), Dublin, Ireland, 2020, pp. 1-6.
[8] J. -B. Seo and V. C. M. Leung, "Performance Characterization on Random Access in LTE-Based Two-Tier Small-Cell Networks," in IEEE Transactions on Vehicular Technology, vol. 65, no. 10, pp. 8528-8537, October. 2016.
[9] X. Lin, A. Adhikary and Y.-P. E. Wang, "Random Access Preamble Design and Detection for 3GPP Narrowband IoT Systems," in IEEE Wireless Communications Letters, vol. 5, no. 6, pp. 640-643, December 2016.
[10] Q. Xiong, B. Yu, C. Qian, X. Li and C. Sun, "Random Access Preamble Generation and Procedure Design for 5G-NR System," 2018 IEEE Globecom Workshops (GC Wkshps), Abu Dhabi, United Arab Emirates, 2018, pp. 1-5.
[11] G. Schreiber and M. Tavares, "5G New Radio Physical Random Access Preamble Design," 2018 IEEE 5G World Forum (5GWF), Silicon Valley, CA, USA, 2018, pp. 215-220.
[12] X. Lin, A. Adhikary and Y.-P. Eric Wang, "Random Access Preamble Design and Detection for 3GPP Narrowband IoT Systems," in IEEE Wireless Communications Letters, vol. 5, no. 6, pp. 640-643, Dec. 2016.
[13] J. Zou, H. Yu, W. Miao and C. Jiang, "Packet-Based Preamble Design for Random Access in Massive IoT Communication Systems," in IEEE Access, vol. 5, pp. 11759-11767, 2017.
[14] M. M. U. Gul, X. Ma and S. Lee, "Timing and Frequency Synchronization for OFDM Downlink Transmissions Using Zadoff-Chu Sequences," in IEEE Transactions on Wireless Communications, vol. 14, no. 3, pp. 1716-1729, March 2015.
[15] G. Cui, Y. He, P. Li and W. Wang, "Enhanced Timing Advanced Estimation With Symmetric Zadoff-Chu Sequences for Satellite Systems," in IEEE Communications Letters, vol. 19, no. 5, pp. 747-750, May 2015.
[16] L. Zhen, H. Qin, B. Song, R. Ding, X. Du and M. Guizani, "Random Access Preamble Design and Detection for Mobile Satellite Communication Systems," in IEEE Journal on Selected Areas in Communications, vol. 36, no. 2, pp. 280-291, February 2018.
[17] C. Zhang, W. Cao, Z. Yang, K. Tian and N. Zhang, "Random Access Preamble Design for Large Frequency Shift in Satellite Communication," 2019 IEEE 2nd 5G World Forum (5GWF), Dresden, Germany, 2019, pp. 659-664.
[18] T. A. Khan and X. Lin, "Random Access Preamble Design for 3GPP Non-terrestrial Networks," 2021 IEEE Globecom Workshops (GC Wkshps), Madrid, Spain, 2021, pp. 1-5.
[19] M. Hua, M. Wang, K. W. Yang and K. J. Zou, "Analysis of the Frequency Offset Effect on Zadoff–Chu Sequence Timing Performance," in IEEE Transactions on Communications, vol. 62, no. 11, pp. 4024-4039, November 2014.
[20] 3GPP TS 36.211 V17.2.0: Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation, June 2022.
[21] M. Hua et al., "Analysis of the Frequency Offset Effect on Random Access Signals," in IEEE Transactions on Communications, vol. 61, no. 11, pp. 4728-4740, November 2013.
[22] J. Wang, H. Chang, H. Duan, H. Ba, and J. Wu, “An uplink timing synchronization method for GEO mobile SAT-LTE system,” in 16th International Conference on Advanced Communication Technology, pp. 1045–1049, February 2014.
[23] M. Hua et al., "Analysis of the Frequency Offset Effect on Random Access Signals," in IEEE Transactions on Communications, vol. 61, no. 11, pp. 4728-4740, November 2013.
[24] M. Gul, S. Lee, and X. Ma, “Robust synchronization for OFDM employing Zadoff-Chu sequence,” 2012 46th Annual Conference on Information Sciences and Systems (CISS), pp. 1–6, March 2012.
[25] 3GPP TS 38.211, “NR; Physical channels and modulation (Release 17).” version no. V17.3.0, September 2022.
[26] M. Caus, A. I. Pérez-Neira, J. Bas and L. Blanco, "New Satellite Random Access Preamble Design Based on Pruned DFT-Spread FBMC," in IEEE Transactions on Communications, vol. 68, no. 7, pp. 4592-4604, July 2020.
[27] L. Zhen, S. Li, Y. Wang, J. Su and K. Yuyz, "PRACH Sequence Design for NR Unlicensed Spectrum," 2022 IEEE Globecom Workshops (GC Wkshps), Rio de Janeiro, Brazil, pp. 1279-1284, 2022.
[28] S. Meng, J. Wu, W. Meng, S. Chen and S. Han, "Design of New Radio RA Preamble Based on Pruned DFT-Spread FBMC and Coverage Sequence," 2022 International Wireless Communications and Mobile Computing (IWCMC), Dubrovnik, Croatia, pp. 1380-1385, 2022.
[29] M. Caus and A. I. Pérez-Neira, "FBMC-Based Random Access Signal Design and Detection for LEO Base Stations," in IEEE Transactions on Wireless Communications, vol. 22, no. 3, pp. 2156-2170, March 2023.
[30] 3GPP TS 38.104 V17.7.0: NR; Base Station (BS) radio transmission and reception, September 2022.
[31] E-UTRA Random Access Preamble Design, document R1-060998, TSG RAN WG1 #44bis, pp. 27–31, March. 2006.
[32] C. Rohde, N. Alagha, R. De Gaudenzi, H. Stadali, and G. Mocker, “Super-framing: A powerful physical layer frame structure for next generation satellite broadband systems,” International Journal Satellite Communications and Networking, vol. 34, no. 3, pp. 413–438, May 2016.
[33] 3GPP TS 38.104, “NR base-station (BS) radio transmission and reception (Release 16).” version no. V16.5.0, October 2020.
[34] J. Liu, M. Wang and X. Feng, "Synchronization Algorithm of 5G New Waveform Based on Index Modulation," 2022 IEEE 95th Vehicular Technology Conference: (VTC2022-Spring), Helsinki, Finland, 2022, pp. 1-6.
[35] X. Ma, G. Giannakis, and S. Barbarossa, “Non-data-aided frequency offset and channel estimation in OFDM and related block transmissions,” ICC 2001. IEEE International Conference on Communications. Conference Record (Cat. No.01CH37240), vol. 6, 2001, pp. 1866–1870.
[36] P. H. Moose, "A technique for orthogonal frequency division multiplexing frequency offset correction," in IEEE Transactions on Communications, vol. 42, no. 10, pp. 2908-2914, October 1994.
[37] S. Salari, M. Ardebilipour and M. Ahmadian, "Joint Maximum Likelihood Frequency Offset and Channel Estimation for MIMO-OFDM Systems," lET Commun., vol. 2, no. 8, pp. 1069-1076, Sep. 2008.
[38] P. Stoica and O. Besson, "Training sequence design for frequency offset and frequency-selective channel estimation," in IEEE Transactions on Communications, vol. 51, no. 11, pp. 1910-1917, Nov. 2003.

指導教授

陳永芳(Yung-Fang Chen)

審核日期

2024-1-9

推文