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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 鐘嘉德 | zh_TW |
| dc.contributor.advisor | Char-Dir Chung | en |
| dc.contributor.author | 陳柏任 | zh_TW |
| dc.contributor.author | Po-Jen Chen | en |
| dc.date.accessioned | 2024-08-08T16:22:36Z | - |
| dc.date.available | 2024-08-09 | - |
| dc.date.copyright | 2024-08-08 | - |
| dc.date.issued | 2024 | - |
| dc.date.submitted | 2024-07-28 | - |
| dc.identifier.citation | “LTE: Evolved Universal Terrestrial Radio Access (E-UTRA): Physical channels and modulation,” 3GPP, Sophia Antipolis Cedex, France, TS 36.211 V12.3.0, Oct. 2014.
“5G NR: Physical channels and modulation,” 3GPP, Sophia Antipolis Cedex, France, TS 38.211 V16.2.0, Jul. 2020. H. Minn, V. K. Bhargava, and K. K. B. Letaief, “A robust timing and frequency synchronization for OFDM systems,” IEEE Trans. Wireless Commun., vol. 2, no. 4, pp. 822-839, Jul. 2003. K. S. Kim, S. W. Kim, Y. S. Cho, and J. Y. Ahn, “Synchronization and cell-search technique using preamble for OFDM cellular systems,” IEEE Trans. Veh. Technol., vol. 56, no. 6, pp. 3469- 3485, Nov. 2007. S. Johnson and O. A. Dobre, “Time and carrier frequency synchronization for coherent optical communication: Implementation considerations, measurements, and analysis,” IEEE Trans. Instrum. Meas., vol. 69, no. 8, pp. 5810-5820, Aug. 2020. C.-D. Chung and W.-C. Chen, “Preamble sequence design for spectral compactness and initial synchronization in OFDM,” IEEE Trans. Veh. Technol., vol. 67, no. 2, pp. 1428-1443, Feb. 2018. S.-H. Lu, C.-D. Chung, W.-C. Chen, and P.-F. Tsou, “Orthogonal constant-amplitude sequence families for system parameter identification in spectrally compact OFDM,” Wireless Personal Commun., pp. 1-35, Apr. 2024. S.-H. Lu, C.-D. Chung and W.-C. Chen, “Simultaneous channel estimation in MIMO OFDM systems using constant-amplitude sequences,” in Proc. IEEE Veh. Technol. Conf., Hong Kong, Oct. 2023, pp. 1-7. “NR; Physical layer procedures for control,” 3GPP, Sophia Antipolis Cedex, France, TS 38.213 V16.2.0, Jul. 2020. “5G; NR; Base station (BS) radio transmission and reception,” 3GPP, Sophia Antipolis Cedex, France, TS 38.104 V16.4.0, Jul. 2020. D. C. Chu, “Polyphase codes with good periodic correlation properties,” IEEE Trans. Inform. Theory, vol. 18, pp. 531-532, Jul. 1972. B. M. Popovic ́, “Generalized chirp-like polyphase sequences with optimum correlation properties,” IEEE Trans. Inform. Theory, vol. 38, pp. 1406-1409, Jul. 1992. J. J. Benedetto and J. J. Donatelli, “Ambiguity function and frame-theoretic properties of periodic zero-autocorrelation waveforms,” IEEE J. Select. Topics Signal Process., vol. 1, no. 1, pp. 6-20, Jun. 2007. R. A. Pitaval, B. M. Popovic ́, P. Wang, and F. Berggren, “Overcoming 5G PRACH capacity shortfall: Supersets of Zadoff-Chu sequences with low-correlation zone,” IEEE Trans. Commun., vol. 68, no. 9, pp. 5673-5688, Sep. 2020. A.-E. Mostafa, et al. “Aggregate preamble sequence design and detection for massive IOT with deep learning,” IEEE Trans. Veh. Technol., vol. 70, no. 4, pp. 3800-3816, Apr. 2021. T. Kim, I. Bang, and D. K. Sung, “An enhanced PRACH preamble detector for cellular IOT communications,” IEEE Commun. Lett., vol. 21, no. 12, pp. 2678-2681, Dec. 2017. S. S. Rout, “Enhanced PRACH detection by wavelet de-noising,” in Proc. Int. Conf. Commun. and Signal Process., Chennai, India, Apr. 2019, pp. 195-199. T. A. Pham and B. T. Le, “A proposed preamble detection algorithm for 5G-PRACH,” in Proc. Int. Conf. Adv. Technol. Commun., Hanoi, Vietnam, Oct. 2019. L. Zhen, et al. “Efficient collision detection based on Zadoff-Chu sequences for satellite-enabled M2M random access,” in Proc. IEEE Int. Conf. Commun., Montreal, QC, Canada, pp. 1-6, Aug. 2021. “NR; Medium access control (MAC) protocol specification,” 3GPP, Sophia Antipolis Cedex, France, TS38.321 V16.1.0, Jul. 2020. E. Dahlman, S. Parkvall, and J. Sköld, 5GNR: The Next Generation Wireless Access Technology, 2nd ed. Elsevier, 2021. S. Kim, et al. “Low Latency Random Access for Small Cell Toward Future Cellular Networks,” IEEE Access, vol. 7, pp. 178563-178576, Dec, 2019. Y.-C. Tseng, Simultaneous Channel Estimation in Multicell Multiuser Uplink MIMO OFDM Systems. M.S. Thesis, National Taiwan University, 2024. T. Kim and S. H. Chae, “A channel estimator via non-orthogonal pilot signals for uplink cellular IoT,” IEEE Access, vol. 7, pp. 53419-53428, Apr. 2019. C.-D. Chung, W.-C. Chen, and C.-K. Yang, “Constant-amplitude sequences for spectrally compact OFDM training waveforms,” IEEE Trans. Veh. Technol., vol. 69, no. 11, pp. 12974-12991, Nov. 2020. C. Nader, et al. “Performance evaluation of peak-to-average power ratio reduction and digital pre-distortion for OFDM based systems,” IEEE Trans. Microw. Theory Techn., vol. 59, no. 12, pp. 3504-3511, Nov. 2011. J. G. Proakis and M. Salehi, Digital Communications, 5th ed. New York: McGraw-Hill, 2008. D. A. Shnidmen, “The calculation of the probability of detection and the generalized Marcum Q-function,” IEEE Trans. Inform. Theory, vol. 35, pp. 389-400, Mar. 1989. “5G; NR; Radio resource control (RRC) protocol specification,” 3GPP, Sophia Antipolis Cedex, France, TS38.331 V17.0.0, May. 2022. | - |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/93817 | - |
| dc.description.abstract | 在上行蜂巢環境中，隨機存取前置訊號偵測 (random-access preamble detection; RAPD) 是通過閾值比較去識別可能接收到的多個攜帶著任意選擇的恆定振幅 (constant-amplitude; CA) 前置序列的正交分頻多工 (orthogonal frequency-division multiplexing; OFDM) 信號。在獨立的萊斯或瑞利多路徑通道以及多個接收到的OFDM信號之間存在時間偏移的情況下，本論文針對誤報、錯誤和誤識別機率對閾值法RAPD的性能進行了分析研究。當前置訊號序列集合包含相互正交的CA序列以及盡可能多的最小循環移位距離ϖ_min-允許的循環移位恆定振幅 (cyclically-shiftable constant-amplitude; CSCA) 序列時，RAPD系統表現出較少的序列間干擾影響，這些ϖ_min-允許的CSCA序列可以彼此在時域以循環位移ϖ_min產生。
因此在本論文中，分別展示了由正交的 ϖ_min-允許的CSCA序列子家族組成的修改相位模型分配 (modified phase-model-assigning; MPMA) 序列家族，以及由非正交的 ϖ_min-允許的CSCA序列子家族組成Zadoff-Chu序列家族家族的RAPD系統性能特徵。在限制誤報和錯誤機率上限的條件下，採用MPMA序列家族的系統能提供比採用Zadoff-Chu的系統更小的誤識別機率。 | zh_TW |
| dc.description.abstract | In uplink cellular environments, random access preamble detection (RAPD) is achieved by identifying possibly multiple received requesting orthogonal frequency-division multiplexing (OFDM) signals carrying arbitrarily-chosen constant-amplitude (CA) preamble sequences through threshold comparison. Such threshold-based RAPD is analytically studied in terms of false alarm, outage, and false identification probabilities for the receiver operating under independent Rician/Rayleigh multipath channels and in the presence of time offsets among multiple received requesting OFDM signals. The RAPD system is shown to operate under less influence of inter-sequence interference when the preamble sequence set consists of mutually orthogonal CA sequences and contains as many ϖ_min-permissible cyclically-shiftable constant-amplitude (CSCA) sequences as possible, where ϖ_min-permissible CSCA sequences are cyclically shifted from each other with a minimum cyclic shift distance ϖ_min in time domain. Thus, the modified phase-model-assigning (MPMA) sequence family comprised of orthogonal ϖ_min-permissible CSCA sequence subfamilies, and Zadoff-Chu, which is comprised of nonorthogonal ϖ_min-permissible CSCA sequence subfamilies, are demonstrated for RAPD performance evaluation. While constraining upper false-alarm and outage probability bounds, the system adopting the MPMA sequence family is shown to provide much smaller false-identification probability than the system adopting the Zadoff-Chu sequence family. | en |
| dc.description.provenance | Submitted by admin ntu (admin@lib.ntu.edu.tw) on 2024-08-08T16:22:36Z No. of bitstreams: 0 | en |
| dc.description.provenance | Made available in DSpace on 2024-08-08T16:22:36Z (GMT). No. of bitstreams: 0 | en |
| dc.description.tableofcontents | 誌謝 i
中文摘要 ii Abstract iii Contents iv List of Figures vi List of Tables viii List of Abbreviations ix Chapter 1 Introduction 1 1.1 Constant-Amplitude Sequence 1 1.2 Random Access Procedure 2 1.3 Motivation and Contribution 6 1.4 Organization 7 1.5 Notations 7 Chapter 2 Random-Access Preamble Detection 9 2.1 Signal and System Model 10 2.2 Useful CA Sequence Families 13 2.2.1 ZC Sequence Family Q_ZC 14 2.2.2 MPMA Sequence Family Q_MPMA 15 2.3 PAPR of the Useful CA Sequence Families 17 Chapter 3 RAPD Performance Analysis 20 3.1 Performance Measures 20 3.2 Performance Analysis 23 3.3 Performance Analysis for Useful CA Sequence Families 27 3.3.1 ϖ_min-Permissible CSCA Sequence Subfamilies 28 3.3.2 Orthogonal ϖ_min-Permissible CSCA Sequence Subfamilies 29 3.3.3 Special Case for ϖ_min-Permissible CSCA Sequence Family 29 Chapter 4 RAPD Performance Result 31 4.1 Channel Model and System Parameters 31 4.2 Performance Result for Single UT Case 34 4.3 Performance Result for Multiple UTs Case 38 4.4 Performance Result for ϖ_min-Permissible CSCA Sequence Family 41 Chapter 5 Conclusion and Future Works 44 5.1 Conclusion 44 5.2 Future Works 44 Appendix 46 References 49 | - |
| dc.language.iso | en | - |
| dc.subject | 隨機存取 | zh_TW |
| dc.subject | 前置訊號序列設計 | zh_TW |
| dc.subject | 正交分頻多工 | zh_TW |
| dc.subject | 恆定振幅序列 | zh_TW |
| dc.subject | 前置訊號偵測 | zh_TW |
| dc.subject | random access | en |
| dc.subject | orthogonal frequency division multiplexing | en |
| dc.subject | constant-amplitude sequences | en |
| dc.subject | preamble detection | en |
| dc.subject | preamble sequence design | en |
| dc.title | 正交分頻多工系統使用恆定振幅序列進行隨機存取前置訊號偵測 | zh_TW |
| dc.title | Random Access Preamble Detection in OFDM Using Constant-Amplitude Sequences | en |
| dc.type | Thesis | - |
| dc.date.schoolyear | 112-2 | - |
| dc.description.degree | 碩士 | - |
| dc.contributor.coadvisor | 陳維昌 | zh_TW |
| dc.contributor.coadvisor | Wei-Chang Chen | en |
| dc.contributor.oralexamcommittee | 王晉良;林茂昭;李穎 | zh_TW |
| dc.contributor.oralexamcommittee | Chin-Liang Wang;Mao-Chao Lin;Ying Li | en |
| dc.subject.keyword | 正交分頻多工,隨機存取,恆定振幅序列,前置訊號偵測,前置訊號序列設計, | zh_TW |
| dc.subject.keyword | orthogonal frequency division multiplexing,random access,constant-amplitude sequences,preamble detection,preamble sequence design, | en |
| dc.relation.page | 51 | - |
| dc.identifier.doi | 10.6342/NTU202402498 | - |
| dc.rights.note | 同意授權(全球公開) | - |
| dc.date.accepted | 2024-07-30 | - |
| dc.contributor.author-college | 電機資訊學院 | - |
| dc.contributor.author-dept | 電信工程學研究所 | - |
| 顯示於系所單位： | 電信工程學研究所 | |
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|---|---|---|---|
| ntu-112-2.pdf | 2.84 MB | Adobe PDF | 檢視/開啟 |
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