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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 林茂昭(Mao-Chao Lin) | |
| dc.contributor.author | Cheng-Yen Chang | en |
| dc.contributor.author | 張政晏 | zh_TW |
| dc.date.accessioned | 2022-11-23T09:15:17Z | - |
| dc.date.available | 2021-08-10 | |
| dc.date.available | 2022-11-23T09:15:17Z | - |
| dc.date.copyright | 2021-08-10 | |
| dc.date.issued | 2021 | |
| dc.date.submitted | 2021-08-02 | |
| dc.identifier.citation | [1]3rd Generation Partnership Project (3GPP). Multiplexing and channel coding.3GPP 38.212 V.15.3.0, 2018. [2]H. Breiling, S. H. MullerWeinfurtner, and J. B. Huber. Slm peakpowerreduction without explicit side information.IEEECommunicationsLetters,5(6):239–241, 2001. [3]Z. Ding, Y. Liu, J. Choi, Q. Sun, M. Elkashlan, C.L. I, and H. V. Poor. Application of nonorthogonal multiple access in lte and 5g networks, 2015. [4]Y. H. et al. Gain division multiple access for transmissions over independentfading channels.2019IEEEVTSAsiaPacificWirelessCommunicationsSymposium(APWCS),Singapore, pages 1–5, 2019. [5]R. Hoshyar, F. P. Wathan, and R. Tafazolli. Novel lowdensity signature forsynchronous cdma systems over awgn channel.IEEETransactionsonSignalProcessing, 56(4):1616–1626, 2008. [6]R. Hoshyar, F. P. Wathan, and R. Tafazolli. Novel lowdensity signature forsynchronous CDMA systems over AWGN channel.IEEETransactionsonSignalProcessing, 56(4):1616–1626, Apr. 2008. [7]Y. Hsu, B. Chang, C. Chang, P. Su, I. Yeh, K. Cheng, Y. Lin, and M. Lin.Gain division multiple access for transmissions over independent fading channels. In2019IEEEVTSAsiaPacificWirelessCommunicationsSymposium(APWCS), pages 1–5, 2019. [8]Y. Hsu, Y. Yang, S. Lee, H. Lee, and M. Lin. An uplink multiple accessscheme using pilotfree channel estimation.IEEECommunicationsLetters,24(6):1226–1230, 2020. [9]Y.T. Hsu. Analysis and Design of GainDivsion Multiple Access. Master’sthesis, National Taiwan University, 2019. [10]Y.T. Hsu, Y.Q. Yang, S.K. Lee, H.C. Lee, and M.C. Lin. An uplink multiple access scheme using pilotfree channel estimation.IEEECommunicationsLetters, 2020. [11]B. S. Krongold and D. L. Jones. Par reduction in ofdm via active constellationextension. In2003IEEEInternationalConferenceonAcoustics,Speech,andSignalProcessing,2003.Proceedings.(ICASSP’03)., volume 4, pages IV–525, 2003. [12]D. MacKay. Good errorcorrecting codes based on very sparse matrices.IEEETransactionsonInformationTheory, 45(2):399–431, 1999. [13]H. Minn, V. K. Bhargava, and K. B. Letaief. A robust timing and frequency synchronization for ofdm systems.IEEETransactionsonWirelesscommunications, 2(4):822–839, 2003. [14]N. Mokari, M. R. Javan, M. Moltafet, H. Saeedi, and H. PishroNik. A newmultiple access technique for 5g: Power domain sparse code multiple access(psma), 2017. [15]H. Nikopour and H. Baligh. Sparse code multiple access. In2013IEEE24thAnnualInternationalSymposiumonPersonal,Indoor,andMobileRadioCommunications(PIMRC), pages 332–336, Sept 2013. [16]K. Niu and K. Chen. Crcaided decoding of polar codes.IEEECommunicationsLetters, 16(10):1668–1671, 2012. [17]J. G. Proakis and McgrawHill. Digital communications, fourth edition. 2001. [18]M. B. Shahab, R. Abbas, M. Shirvanimoghaddam, and S. J. Johnson. Grantfree nonorthogonal multiple access for iot: A survey.arXivpreprintarXiv:1910.06529, 2019.[19]S. Shao, P. Hailes, T.Y. Wang, J.Y. Wu, R. G. Maunder, B. M. AlHashimi, and L. Hanzo. Survey of turbo, ldpc, and polar decoder asic implementations.IEEECommunicationsSurveysTutorials, 21(3):2309–2333, 2019. [20]S. B. Slimane. Reducing the peaktoaverage power ratio of ofdm signalsthrough precoding.IEEETransactionsonVehicularTechnology, 56(2):686–695, 2007. [21]I. Tal and A. Vardy. List decoding of polar codes.IEEETransactionsonInformationTheory, 61(5):2213–2226, 2015. [22]A. I. A. website. 1st 5g algorithm innovation competitionenv1.0scma. [23]R.Y. Wei. Noncoherent blockcoded mpsk.IEEETransactionsonCommunications, 53(6):978–986, 2005. [24]B. B. X. Dai, Z. Zhang, S. Chen, and S. Sun. Pattern division multiple access:A new multiple access technology for 5g.IEEEWirelessCommunications,25(2):54–60, April 2018. [25]Xiaodong Li and L. J. Cimini. Effects of clipping and filtering on the performance of ofdm.IEEECommunicationsLetters, 2(5):131–133, 1998. [26]Y.Q. Yang. GainDivision Multiple Access and Random Access. Master’sthesis, National Taiwan University, 2020. [27]H.J. Zepernick and A. Finger.Pseudorandomsignalprocessing:theoryandapplication. John Wiley Sons, 2 | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/79885 | - |
| dc.description.abstract | 分增益多重接取系統是一種非正交的多重接取方法，可以在同一資源中同時傳輸多個使用者。在本文中，我們使用分群方法作為盲蔽式通道估計技術來獲得通道狀態。空時分組碼是一種用於無線通訊的技術，它可以通過使用多個天線和多個時間點來獲得更多的分集增益，使用空時分組碼使我們的系統更穩定。 我們還將使用極化碼的分增益多重接取系統與正交分頻多工相結合。利用極性碼的特性，我們可以解決無導頻信道估計的相位模糊性，同時降低峰均功率比。 低密度簽名碼分多重接取系統和稀疏碼多重接取系統是非正交多重接取系統方法，其中稀疏碼多重接取系統是從低密度簽名碼分多重接取系統衍生而來的一種特殊信號星座設計方法。在文獻中，我們以許多不同的方案在瑞利衰落信道下比較了分增益多重接取系統，稀疏碼多重接取系統和低密度簽名碼分多重接取系統。 隨機接取是無線通信的重要組成部分。我們針對一種通過將分增益多重接取系統與傳統的阿樂哈系統結合而無需使用前導碼和導頻來識別用戶的方法做更進一步的研究。 | zh_TW |
| dc.description.provenance | Made available in DSpace on 2022-11-23T09:15:17Z (GMT). No. of bitstreams: 1 U0001-3007202118473700.pdf: 4374512 bytes, checksum: e408b2f6dc02702579f44e2ded74fe62 (MD5) Previous issue date: 2021 | en |
| dc.description.tableofcontents | "Chapter 1 Introduction 1 Chapter 2 Gain-Division Multiple Access 7 2.1 Detection Principle. . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.2 Implement Method. . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2.2.1 MPSKGDMA Implementation. . . . . . . . . . . . . . . . . . . . 13 2.2.2 16QAMGDMA Implementation. . . . . . . . . . . . . . . . . . 17 2.3 Clustering-Based Channel Estimation. . . . . . . . . . . . . . . . . 19 2.3.1 Clustering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 2.3.2 Derivation of Channel Coefficient. . . . . . . . . . . . . . . . . . 22 2.4 Resolve Phase Ambiguity. . . . . . . . . . . . . . . . . . . . . . . 27 2.4.1 Differential Encoding. . . . . . . . . . . . . . . . . . . . . . . . . 28 2.4.2 Noncoherent Block Coding. . . . . . . . . . . . . . . . . . . . . 29 2.5 Q-section NBC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 2.6 Q-section NBC for PAPR Reduction. . . . . . . . . . . . . . . . . . 40 2.7 Alamouti Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Chapter 3 Low-Density Signature 51 3.1 Sparse Code Multiple Access. . . . . . . . . . . . . . . . . . . . . 51 3.1.1 Encoding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 3.1.2 Decoding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 3.1.2.1 Initialization. . . . . . . . . . . . . . . . . . . . . . . 54 3.1.2.2 Iteration. . . . . . . . . . . . . . . . . . . . . . . . . 55 3.1.2.3 Decision. . . . . . . . . . . . . . . . . . . . . . . . . 56 3.1.3 Performance Evaluation. . . . . . . . . . . . . . . . . . . . . . . . 57 3.1.3.1 GDMA,U= 3. . . . . . . . . . . . . . . . . . . . . . 57 3.1.3.2 LDSCDMA. . . . . . . . . . . . . . . . . . . . . . . 59 3.2 More Users. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 3.3 Alamouti code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 3.4 Error Correcting Code. . . . . . . . . . . . . . . . . . . . . . . . . 66 3.5 LDS-OFDM-CDMA. . . . . . . . . . . . . . . . . . . . . . . . . . 68 Chapter 4 GDMA-based Random Transmission 73 4.1 Introduction of Random Access Procedure. . . . . . . . . . . . . . 73 4.2 RAOFDMGDMA. . . . . . . . . . . . . . . . . . . . . . . . . . 77 4.3 Preamble. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 4.4 Preamblefree. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Chapter 5 Conclusion and Future Works 93 References 95" | |
| dc.language.iso | en | |
| dc.subject | 極化碼 | zh_TW |
| dc.subject | 非同調區段碼 | zh_TW |
| dc.subject | 通道估計 | zh_TW |
| dc.subject | 隨機存取 | zh_TW |
| dc.subject | 低密度簽記 | zh_TW |
| dc.subject | 多重接取 | zh_TW |
| dc.subject | Polar code | en |
| dc.subject | Multiple Access | en |
| dc.subject | Low Density Signature | en |
| dc.subject | Random Access Channel | en |
| dc.subject | Channel Estimation | en |
| dc.subject | NonCoherent Block Coding | en |
| dc.title | 分增益多重接取之設計與應用 | zh_TW |
| dc.title | Design and Application of Gain-Division Multiple Access | en |
| dc.date.schoolyear | 109-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 蘇賜麟(Hsin-Tsai Liu),蘇育德(Chih-Yang Tseng),趙啟超,呂忠津 | |
| dc.subject.keyword | 非同調區段碼,通道估計,隨機存取,低密度簽記,多重接取,極化碼, | zh_TW |
| dc.subject.keyword | Polar code,NonCoherent Block Coding,Channel Estimation,Random Access Channel,Low Density Signature,Multiple Access, | en |
| dc.relation.page | 99 | |
| dc.identifier.doi | 10.6342/NTU202101950 | |
| dc.rights.note | 同意授權(全球公開) | |
| dc.date.accepted | 2021-08-03 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 電信工程學研究所 | zh_TW |
| 顯示於系所單位： | 電信工程學研究所 | |
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|---|---|---|---|
| U0001-3007202118473700.pdf | 4.27 MB | Adobe PDF | 檢視/開啟 |
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