博碩士論文 955203034 詳細資訊




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:109 、訪客IP:3.142.255.150
姓名 張雅茹(Ya-ru Jhang)  查詢紙本館藏   畢業系所 通訊工程學系
論文名稱 以符元交錯及訓練基礎的籬柵編碼非同調空時調變
(Training-Based Symbol-Interleaved Trellis Coded Noncoherent Space-Time Modulation)
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]
  1. 本電子論文使用權限為同意立即開放。
  2. 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。
  3. 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) 下一代通信系統對於高傳輸率及高機動性的要求以非常快之速度成長,空時碼是目前無線通信系統最有效克服衰減之技術及提供高可靠之傳輸。么正空時調變是一種在傳送天線及接收天線都不需知道通道狀態資訊之非同調空時碼;籬柵編碼么正空時調是一種用於區塊衰減通道的空時碼,其可以得到重大的編碼增益;之前的論文提出訓練基礎的籬柵編碼非同調空時調變,適當運用交錯器,將一個籬柵支脈上之空時碼打散在不同衰減區塊上,藉此可增加時間分集,因而於高訊號雜訊比時可得到非常好的效能。
本論文提出一個新的籬柵編碼非同調空時調變,以訓練碼和符元交錯的方式,將一個籬柵支脈上之符元訊號打散在不同衰減區塊上,比起之前的論文可以獲得更大的時間分集增益。我們使用電腦去搜尋出使架構具有最佳位元錯誤率的生成矩陣。模擬結果證實此架構因具有較大的分集增益,因而於高訊號雜訊比時比起之前的論文有著較佳的符元錯誤機率。
摘要(英) The main goal of the next generation wireless communication systems provides
high data rates and high mobile service for the Internet and multimedia applications.
Space-time coding was one of the most effective techniques to combat fading and to provide high reliable transmission. A noncoherent space-time code named unitary space-time modulation(USTM) in which the transmit and the receive antennas do not know the channel state information; trellis coded USTM for the noncoherent block fading channel can obtain signigicant coding gains; the reviewed scheme proposed a training-based trellis coded noncoherent space-time modulation scheme by properly interleaving space-time signals for the block fading channels. This scheme can enlarge temporal diversity at the price of increased complexity and delay thus can have good performance at high SNR.
In this thesis, we propose a scheme of training-based trellis coded noncoherent space-time modulation which has larger diversity gains by training-basing and symbol-interleaving for the block fading channels. We utilize computers to search the best generator matrix which let the proposed scheme have the best BER. Simulation results confirm that our scheme has larger diversity thus has better BER at high SNR than the reviewed scheme.
關鍵字(中) ★ 空時碼
★ 么正空時調變
★ 籬柵碼
關鍵字(英) ★ Unitary space-time modulation
★ Space-time code
★ Trellis code
論文目次 第一章 序論----------------------------------------------1
1.1 前言---------------------------------------------1
1.2 研究動機-----------------------------------------1
1.3 論文架構-----------------------------------------2
第二章 回顧----------------------------------------------3
2.1 空時區塊碼---------------------------------------3
2.2 么正空時調變-------------------------------------8
2.2.1 系統模型----------------------------------8
2.2.2 最大可能性解碼器-------------------------10
2.2.3 成對錯誤機率-----------------------------11
2.2.4 么正空時調變的建構----------------------12
2.3 籬柵編碼非同調空時調變--------------------------16
2.3.1 系統模型---------------------------------16
2.3.2 既有的籬柵編碼么正空時調變架-------------17
2.4 以訓練基礎的籬柵編碼非同調空時調變------------------18
第三章 以符元交錯及訓練基礎的籬柵編碼非同調空時調變-----26
3.1 系統架構----------------------------------------26
3.2 模擬環境----------------------------------------34
3.3 模擬結果----------------------------------------36
第四章 結論---------------------------------------------57
參考文獻-------------------------------------------------58
參考文獻 [1]S. M. Alamouuti,“A simple transmitter diversity scheme for wireless communications,”IEEE J. Select. Areas Commum., vol. 16, 99.1451-1458, Oct. 1999.
[2]V. Tarokh, H. Jafarkhani and A. R. Calderbank,“Space-time block codes from orthogonal designs,”IEEE Trans. Inform. Theory, vol. 45, pp. 1456-1467, July 1999.
[3]V. Tarokh, N. Seshadri, and A. R. Calderbank, "Space-time codeds for high data rate wireless communication: Performance criterion and code construction," IEEE Trans. Inform. Theory, vol. 44, pp. 744-765, Mar. 1998.
[4]V. Tarokh, H. Jafarkhani, and A. R. Calderbank, "Space-time block codes from orthogonal designs," IEEE Trans. Inform. Theory, vol. 45,pp. 1456-1467, July. 1999.
[5]B. M. Hochwald and T. L. Marzetta, ‘‘Unitary space-time modulation for multiple-antenna communication in Rayleigh flat fading,’’ IEEE Trans. Inform. Theory, vol. 46, pp. 543-564, Mar. 2000.
[6]B. M. Hochwald, T. Marzetta, T. Richardson, W. Sweldens, and R. Urbanke, "Systematic design of unitary space-time constellations," IEEE Trans. Inform. Theory, vol. 46, pp. 1962-1973, Sept. 2000.
[7]T. L. Marrzetta and B. M. Hochwald, “Capacity of a mobile multiple-antenna communication link in Rayleigh flat fading,” IEEE Trans. Inform. Theory, vol. 45, pp. 139-157, Jan. 1999.
[8]L. H. Ozarow, S. Shamai (Shitz), and A. D. Wyner, “Information theoretic considerations for cellular mobile radio,” IEEE Trans. Inform. Theory, vol. 43, pp. 359-378, May 1994.
[9]E. Biglieri, J. Proakis, and S. Shami (Shitz), “Fading channels: Information-theoretic and communications aspects,” IEEE Trans. Inform. Theory, vol. 44, pp. 2619-2992, Oct. 1998.
[10]B. Hochwald and W. Swelden, “Differential unitary space-time modulation,” IEEE Trans. Commun. vol. 48, pp. 2041-2052, Dec. 2000
[11]I. Bahceci and T. Duman, “Trellis coded unitary space-time modulation,” IEEE Trans. Wireless Commun., vol. 3, pp. 2005-2012, Nov. 2004.
[12]W. Zhao, G. Leus, and G. B. Giannakis, “Orthogonal design of unitary constellations for uncoded and trellis-coded noncoherent space-time systems,” IEEE Trans. Inform. Theory, vol. 50, pp. 1319-1327, June 2004.
[13]Z. Sun and T. T. Tjhung, “On performance analysis and design criteria for trellis coded unitary space-time modulation,” in Proc. IEEE WCNC, Mar. 2003, pp. 262-267.
[14]G. Ungerboeck, “Channel coding with multilevel/phase signals,” IEEE Trans. Inform. Theory, vol. IT-28, pp. 55-66, Jan. 1982.
[15]Ruey-Yi Wei and Y. L. Wu, ‘‘On trellis coded noncoherent space-time modulation,’’ IEEE Transactions on Wireless Communications, vol. 6, no. 7, pp. 2432-2437, July 2007.
[16]P. Dayal, M. Brehler, and M. K. Varanasi, “Leveraging coherent space-time codes for noncoherent communication via training,” IEEE Trans. Inform. Theory, vol. 50, pp. 2058-2080, Sep. 2004.
指導教授 魏瑞益(Ruey-Yi Wei) 審核日期 2009-1-19
推文 facebook   plurk   twitter   funp   google   live   udn   HD   myshare   reddit   netvibes   friend   youpush   delicious   baidu   
網路書籤 Google bookmarks   del.icio.us   hemidemi   myshare   

若有論文相關問題,請聯絡國立中央大學圖書館推廣服務組 TEL:(03)422-7151轉57407,或E-mail聯絡  - 隱私權政策聲明