渦輪編碼系統架構之非同調重覆式解調器

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：27

、訪客IP：18.118.210.213

姓名

黃宣瑜(Syuan-yu Huang) 查詢紙本館藏

畢業系所

通訊工程學系

論文名稱

渦輪編碼系統架構之非同調重覆式解調器
(Noncoherent Iterative Demodulators for Turbo Coding Systems)

相關論文

★ 具有快速改變載波相位之籬柵編碼MPSK 的非同調解碼	★ 用於非同調解碼之多層次編碼調變
★ 么正空間時間籬柵碼之解碼演算法	★ 由多層次編碼所架構之非同調碼
★ 用於非同調檢測之與空時區塊碼連結的區塊編碼調變	★ 用於正交分頻多工系統具延遲處理器的空時碼
★ 用於非同調區塊編碼MPSK之A*解碼演算法	★ 在塊狀衰退通道上的籬柵么正空時調變
★ 用於非同調區塊編碼MPSK之Chase演算法	★ 使用決定回授檢測之相差空時調變的一種趨近同調特性
★ 具延遲處理器的空時碼之軟式輸入輸出遞迴解碼	★ 用於非同調區塊編碼MPSK的最大可能性解碼演算法
★ 具頻寬效益之非同調調變	★ 非同調空時渦輪碼
★ 循環字首及補零正交分頻多工系統經預編碼後之頻譜比較	★ 循環字首及補零正交分頻多工系統在時序同步上之效能比較

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]

[檢視]

[下載]

本電子論文使用權限為同意立即開放。
已達開放權限電子全文僅授權使用者為學術研究之目的，進行個人非營利性質之檢索、閱讀、列印。
請遵守中華民國著作權法之相關規定，切勿任意重製、散佈、改作、轉貼、播送，以免觸法。

摘要(中)

在數位通訊傳輸系統當中，重覆式解調結合重覆解碼的演算方法十分適合在使用在非同調區塊衰退通道之下，經由內部解調器解調以及外部解碼器的重複解碼反覆更新訊息的動作，我們可藉由更新接收訊息來獲得更佳的錯誤率。在這篇論文之中，我們討論三種不同的非同調解調器在各種同調區間，相位量化等級的情況下的模擬結果。此外在比較各個解調器的優劣之後，我們結合兩種非同調解調器提出一個新的非同調解調器。

摘要(英)

For digital communication transmission system, the joint noncoherent demodulation and decoding scheme is suitable for noncoherent block fading channel. By the action of iterative demodulation and iterative decoding, the information is updated repetitively and thus the error performance becomes better. In this thesis, three noncoherent demodulation schemes are employed for different coherent length and quantization level. We compare various noncoherent demodulators and propose a new noncoherent demodulation algorithm by combining two noncoherent demodulators.

關鍵字(中)

★ 重覆解調
★ 區塊衰退通道
★ 渦輪碼
★ 重覆解碼

關鍵字(英)

★ block fading channel
★ turbo code
★ iterative demodulation
★ iterative decoding

論文目次

CHAPTER 1 INTRODUCTION 1
CHAPTER 2 REVIEWS OF BLOCK FADING CHANNEL, TURBO CODES, AND JOINT DEMODULATION AND DECODING SCHEME 4
2.1 Block Fading Channel Model 4
2.2 Turbo Codes 6
2.2.1 Encoding 6
2.2.2 Decoding 8
2.3 Joint Noncoherent Demodulation and Decoding Scheme 12
2.3.1 Noncoherent Block Demodulator 12
2.3.2 Inner Analysis between Demodulator and Decoder 16
CHAPTER 3 GENERALIZED NONCOHERENT ITERATIVE DEMODULATORS 19
3.1 Block Modulation Codes 19
3.2 Noncoherent Channel-Quantization Demodulator 23
3.3 Generalized Noncoherent Channel-Quantization Demodulator 28
3.4 Iterative Decision Feedback Demodulator 38
CHAPTER 4 MODIFIED NONCOHERENT ITERATIVE DEMODULATORS AND COMPARISIONS OF SIMULATION RESULTS 47
4.1 BCJR Type Iterative Demodulator 47
4.2 Modified Inner Modulator 58
4.3 Combined Noncoherent 65
4.4 Simulation Results and Comparisons 69
CHAPTER 5 CONCLUSION 74
BIBLIOGRAPHY 75

參考文獻

[1] C. Berrou and A. Glavieux, “Near optimum error correcting coding and decoding: turbo-codes,” IEEE Trans. Commun., vol. 44, pp. 1261-1271, Oct. 1996.
[2] A. Stefanov and T.M. Duman, “Turbo-coded modulation for systems with transmit and receive antenna diversity over block fading channels: System model, decoding approaches, and practical considerations,” IEEE J. Select. Areas Commum., vol.19. pp.958-968, May 2001.
[3] J. K. Cavers, “An analysis of pilot symbol assisted modulation for Rayleigh-fading channels,” IEEE Trans. Veh. Technol., vol. 40, no. 4, pp. 686–693, Nov. 1991.
[4] A. Krishnamoorthy and A. Anastasopoulos, “Code and receiver design for the noncoherent fast-fading channel,” IEEE J. Select. Areas Commun., vol. 23, pp, 1769-1778, Sept. 2005.
[5] R. Y. Wei, Y. W. Hsu, and C. C. Pan, “Low-complexity noncoherent iterative space-time demodulator,” in preparation.
[6] R. R. Chen, R. Koetter, U. Madhow, and D. Agrawal, “Joint noncoherent demodulation and decoding for the block fading channel: a practical framework for approaching Shannon capacity,” IEEE Trans. Commun., vol. 51, pp. 1676-1689, Oct. 2003.
[7] P. Robertson, “Illuminating the structure of code and decoder of parallel concatenated recursive systematic (turbo) codes,” in Proc. IEEE Global Commun. Conf. (GLOBECOM), 1994, pp. 1298–1303.
[8] R. Y. Wei, “Noncohernet block-coded MPSK,” IEEE Trans. Commun., vol. 53, pp. 978-986, June 2005.
[9] B. Hassibi and B. M. Hochwald, “How much training is needed in multiple-antenna wireless links?,” IEEE. Trans. Inform. Theory, vol. 49, pp. 951–963, Apr. 2003.
[10] F. Sun and H. Leib, “Multiple-phase codes for detection without carrier phase reference,” IEEE Trans. Inform. Theory, vol. 44, pp. 1477–1491, July 1998.
[11] D. Warrier and U. Madhow, “Spectrally efficient noncoherent communication,” IEEE Trans. Inform. Theory, vol. 48, pp. 651–668, Mar. 2002.

指導教授

魏瑞益(Ruey-yi Wei)

審核日期

2007-7-17

推文