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研究生:沈聖欽
研究生(外文):Sheng-Chin Shen
論文名稱:MIMOOFDM-CDMA通訊系統之空時處理之性能比較
論文名稱(外文):Performance Comparison of Space Time Processingfor MIMO OFDM-CDMA Communication Systems
指導教授:翁芳標翁芳標引用關係
指導教授(外文):Fang-Biau Ueng
學位類別:碩士
校院名稱:國立中興大學
系所名稱:電機工程學系所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
畢業學年度:96
語文別:英文
論文頁數:45
中文關鍵詞:多輸入多輸出正交分頻多工空時編碼
外文關鍵詞:MIMOOFDMSpace-time coding
相關次數:
  • 被引用被引用:0
  • 點閱點閱:119
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  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
隨著通訊技術的進步,提供高資料量以及高品質的傳輸已經成為近年來電信研究領域中最重要的挑戰。這篇論文主要著重在多輸入多輸出(MIMO)通訊系統下空時碼的訊號處理,我們將探討兩種具代表性的空時系統架構:BLAST和空時區塊碼,以及研究在多輸入多輸出下正交分頻多工(OFDM)與分碼多重接取(CDMA)收發機的結合設計。然後我們將比較這兩種空時系統在干擾環境下的效能表現,也會討論此空時系統架構在解碼時訊號處理的過程。
The development of wireless communication systems for high data rate and high link quality transmission between transmitter and receiver has become the most important challenge in the telecommunication research area. This paper proposes space time coding and signal processing for multiple-input multiple-output (MIMO) communication systems. We describe two representative categories of space-time systems, namely, the BLAST system and the space-time block coding system. We investigate the joint design of orthogonal frequency division multiplexing (OFDM) and code division multiple access (CDMA) transceivers under the MIMO system. And then we compare the performance of them in the rich scattering environments. We also discussed signal processing for decoding in space–time systems.
ACKNOWLEDGEMENT
CHINESE ABSTRACT... i
ENGLISH ABSTRACT... ii
CONTENTS... iii
LIST OF TABLES... v
LIST OF FIGURES... vi
1 INTRODUCTION... 1
2 OVERVIEW OF MIMO OFDM-CDMA SYSTEMS... 3
2.1 MIMOChannelModel... 3
2.2 MIMOOFDM-CDMASystemModel... 7
2.2.1 Multiple-InputMultiple-Output (MIMO)... 7
2.2.2 Orthogonal Frequency Division Multiplexing (OFDM)... 8
2.2.3 CodeDivisionMultiple Access (CDMA)... 10
3 SPACE-TIMECODING... 12
3.1 System Model... 12
3.2 MaximumLikelihood (ML) Receiver... 19
3.3 Zero-Forcing (ZF) Receiver... 22
3.4 Minimummean-square error (MMSE) Receiver... 24
4 BLAST... 26
4.1 System Model... 26
4.2 MaximumLikelihood (ML) Receiver... 28
4.3 Zero-Forcing and Cancellation Receiver... 29
4.4 Minimummean-square error and Cancellation Receiver... 34
5 SIMULATION... 36
6 CONCLUSION... 42
REFERENCE... 43
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[2] G. J. Foschini, “Layered space-time architecture for wireless communication in a fading environment when using multi-element antennas,” Bell Labs Tech. J., vol. 1, no. 2, pp. 41-59, 1996.
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[5] V. Tarokh, H. Jafarkhami, and A. R. Calderbank, “Space-time block codes from orthogonal designs,” IEEE Trans. Inform. Theory, vol. 45, no. 5, pp. 1456-1467, July. 1999.
[6] V. Tarokh, H. Jafarkhami, and A. R. Calderbank, “Space-time block codes for wireless communications,” IEEE Trans. Inform. Theory, vol. 17, no. 3, pp. 451-460, Mar. 1999.
[7] V. Tarokh, N. Seshadri, and A. R. Calderbank, “Space-time codes for high data rate wireless communications: Performance criterion and code construction,” IEEE Trans. inform. Theory, vol. 44, no. 2, pp. 744-765, Mar. 1998. 43
[8] P. W. Wolniansky, G. J. Roschini, G. D. Golden, and R. A. Valenzuela, “V-BLAST: an architecture for realizing very high data rates over the richscattering wireless channel,” In Proc. 1998. Int. Symp. Sig. Sys. Elect.
(ISSSE98), Pisa, Italy, Sep. 1998.
[9] A. M. Sayeed, “Deconstructing Multi-Antenna Fading Channels,” IEEE Trans. Signal Processing (special issue on MIMO systems), pp. 2563-2579, Oct. 2002.
[10] D. Gesbert, H. Bolcskei, D. A. Gore, and A. J. Paulraj, “Outdoor MIMO wireless channels: models and performance prediction,” vol. 50, pp. 1926-1934. 2002.
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[12] H. Artes, D. Seethaler and F. Hlawatsch, “Efficient detection algorithms for MIMO channels: a geometrical approach to approximate ML detection,” IEEE Trans. Signal Processing, vol. 51, no. 11, pp. 2808-2820, Nov. 2003.
[13] Gang Wang, Dandan Wang and Daoben Li, “An efficient ZF-SIC detection algorithm in MIMO CDMA system,” in Proc. IEEE PIMRC, pp. 1708-1711, 7-10 Sept. 2003.
[14] Anja Klein, Ghassan kawas Kaleh and Paul Walter aier, “Zero Forcing and Minimum Mean-Square-Error Equalization for Multiuser Detection in Code Division Multiple-Access Channels,” IEEE Trans. Vehicular Technology Vol. 45, No. 2, pp. 276-287 , May. 1996.
[15] L. Mailaender, “Linear MIMO equalization for CDMA downlink signals with code reuse,” IEEE Trans. Wireless Communications, vol. 4, no. 5, pp. 2423-2434, Sept. 2005.
[16] A. Mantravadi, V. V. Veeravalli and H. Viswanathan, “Spectral efficiency of MIMO multiaccess systems with single-user decoding,” IEEE J. SAelect. Areas Commun., vol. 21, no. 3, pp. 382-394, April 2003. 44
[17] Junqiang Shen and Zhi Ding, “Zero-forcing blind equalization based on subspace estimation for multiuser systems,” IEEE Trans. Communications, vol. 49, no. 2, pp. 262-271, Feb. 2001
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