具延遲處理器的空時碼之軟式輸入輸出遞迴解碼

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：50

、訪客IP：3.145.111.115

姓名

楊鈞偉(Chun-Wei Yang) 查詢紙本館藏

畢業系所

通訊工程學系

論文名稱

具延遲處理器的空時碼之軟式輸入輸出遞迴解碼
(Soft-Input/Soft-Output Iterative Decoding for Space-Time Coding With a Delay Processor)

相關論文

★ 全像光資訊儲存系統的編解碼	★ 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	★ 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)

在無線通道的編碼技術中，多樣性與編碼增益是影響錯誤效能的兩大重要因素。最近，結合具有延遲處理器的籬柵編碼調變與正交空時區塊碼的架構被提出，這個架構可以在窄頻的半平穩衰退通道與寬頻的正交分頻多工衰退通道中有效率的獲得全多樣性並且同時擁有好的編碼增益。之前對於這個架構所作的解碼是使用硬式輸出遞迴解碼，為了獲得更好的效能，在本篇論文中，我們使用軟式輸入輸出遞迴解碼，並將此架構與位元交錯編碼調變作比較。

摘要(英)

The diversity gain and coding gain are two important factors in wireless communications. Recently, the scheme that concatenates space-time block coding with trellis coded modulation with a delay processor is proposed, which can efficiently achieve the full diversity and also obtain good coding gain for the narrowband quasi-static fading channels and the wideband OFDM fading channels. The decoding way for this scheme was a hard-output iterative decoding previously. In order to further improve the error performance, we use the soft-input /soft-output iterative decoding in this thesis and compare it with the BICM scheme.

關鍵字(中)

★ 籬柵編碼調變
★ 延遲處理器
★ 軟式輸入輸出遞迴解碼
★ 多樣性
★ 空時碼

關鍵字(英)

★ space-time code
★ soft-input/soft-output (SISO) iterative decoding
★ trellis coded modulation
★ delay processor
★ diversity

論文目次

1 Introduction 1
2 Reviews on Space-Time Coding and Trellis Coding with a Delay Processor 4
2.1 Space-time Coding 4
2.1.1 Diversity 5
2.1.2 Space-Time Block Coding 6
2.1.3 Space-Time Trellis Coding 8
2.2 Trellis Coded Modulation 11
2.3 Concatenated Space-Time Block Coding With Trellis Coded Modulation 13
2.4 Trellis Coding Structure with a Delay Processor and a Signal Mapper 15
2.4.1 Encoder 15
2.4.2 Hard Decoder 16
2.4.3 Soft Decoder 19
3 Space-Frequency Coded OFDM Systems for Frequency-Selective Channels 24
3.1 The OFDM System and SF Coded OFDM System Model 24
3.2 Concatenated Space-Time Block Coding with Trellis Coded Modulation for OFDM Systems 27
3.3 A New Scheme for Large Diversity 31
4 Soft-Input/Soft-Output Iterative Decoding for Space-Time Coding With a Delay Processor 34
4.1 Concatenated Space-Time Block Coding with A Delay Processor and A Signal Mapper 34
4.2 Simulation Results and Performance Analysis 37
5 Conclusions 69

參考文獻

[1] R.Y. Wei, Y.L. Wu, and Y.L. Ueng, “Two space-frequency schemes for large diversity,” in Proc. IEEE Vehicular Technology Conference (VTC) Spring, Stockholm, May 2005.
[2] Y.Gong and K. B. Letaief, “An efficient space-frequency coded OFDM system for broadband wireless communications,” IEEE Trans. Commun., vol. 51, pp. 2019-2029, Nov. 2003.
[3] S. M. Alamouti, “A simple transmit diversity technique for wireless communications,” IEEE J. Select. Areas Commun., vol. 16, pp. 1451-1458, Oct. 1998.
[4] V. Tarokh, H. Jafarkhani, and A.R. Calderbank, “Space-time block codes for orthogonal designs,” IEEE Trans. Inform. Theory, vol. 49, pp. 1456-1467, July 1999.
[5] G. Hellstern, “Coded modulation with feedback decoding trellis codes,” in Proc. IEEE Int. Conf. on Communications, Geneva, Switzerland, pp. 1071-1075, May 1993.
[6] Y. L. Ueng, C. J. Yeh and M. C. Lin, “On trellis codes with a delay processor and a signal mapper,” IEEE Trans. Commun., vol. 50, pp. 1906-1917, Dec. 2002.
[7] Z. Hong and B. Hughes, “Robust space-time codes for broadband OFDM systems,” in Proc. IEEE WCNC'02, Mar. 2002, pp 105-108.
[8] Y.Gong and K. B. Letaief, “Concatenated space-time block coding with trellis-coded modulation in fading channels,” IEEE Trans. Wireless Commun., vol. 1, pp. 580-590, Oct. 2002.
[9] A. Wittneben, “A new bandwidth efficient transmit antenna modulation diversity scheme for linear digital modulation,” in Proc. IEEE’ICC, 1993, pp. 1630-1634.
[10] V. Tarokh, N. Seshadri and A.R. Calderbank, “Space-time codes for high data rate wireless communication : Performance criterion and code construction,” IEEE Trans. Inform. Theory, vol. 44, pp. 744-765, Mar 1998.
[11] S. M. Alamouti, V. Tarokh and P. Poon, “Trellis coded Modulation and transmit diversity: Design criteria and performance evaluation,” in Proc. IEEE ICUPC`98, Oct. 1998, pp.703-707.
[12] S. Benedetto, D. Divsalar, G. Montorsi, and F. Pollara, “Soft-output decoding algorithms for continuous decoding of parallel concatenated convolutional codes,” in Proc. IEEE ICC’96, June 1996, pp. 23–27.
[13] P. Robertson, E. Villebrun, and P. Hoeher, “A comparison of optimal and sub-optimal MAP decoding algorithms operating in the log domain,” in Proc. IEEE ICC’95, June 1995, pp. 1009–1013.
[14] Chun-Yu Lu, “Super-trellis decoding for trellis codes with a delay/convolutional processor.” Master Thesis, National Central University, Jhongli, June 2003.
[15] E. Zehavi, “8-PSK trellis codes for a Rayleigh channel,” IEEE Trans. Inform. Theory, vol. 40, pp. 873-884, May 1992.
[16] S. Lin and D.J. Costello Jr., Error Control Coding: Fundamentals and Applications. Englewood Cliffs, NJ: Prentice-Hall, 1983.
[17] Z. Hong and B. Hughes, “Bit-interleaved space-time coded modulation with iterative decoding,” IEEE Trans. Wireless Commun., vol. 3, pp 1912-1917, Nov. 2004.

指導教授

魏瑞益(Ruey-Yi Wei)

審核日期

2005-7-12

推文