博碩士論文 92523013 詳細資訊




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姓名 詹怡婷(Yi-Ting Chang)  查詢紙本館藏   畢業系所 通訊工程學系
論文名稱 使用決定回授檢測之相差空時調變的 一種趨近同調特性
(A Coherent-Approaching Property ofDifferential Space-Time ModulationUsing Decision Feedback Detection )
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摘要(中) 在這篇論文中,吾人在接收端採用決定回授檢測相差編碼技術的
前提下定義趨近同調相差空時調變碼,並且提出趨近同調相差空
時調變碼之性質。此性質即為判斷相差空時調變碼之充份條件。
最後以典型的相差空時調變碼為例,模擬分析其同調偵測趨近性
質。
摘要(英) In this thesis, decision-feedback differential detection (DF-DD)
receiver is applied and decision-feedback approaching-coherent
differential space-time modulation (DFAC-DSTM) code is defined.
One of its properties is proposed, which is the sufficient
condition ofDFAC-DSTM codes. Analytical results of classic DSTM
codeword sets confirm the interpretation of the proposed property.
關鍵字(中) ★ 空時碼
★ 多樣性
★ 相差空時調變
★ 多碼字解碼
★ 決定回授
★ 錯誤蔓延
關鍵字(英) ★ differential space time modulation (DSTM)
★ diversity
★ space-time code
★ multiple symbol
★ decision feedback
★ error propagation
論文目次 Contents
1 Introduction 1
2 Reviews of Differential Unitary Space-Time Modulation 3
2.1 Multiple Antennas In Unknown Rayleigh Flat Fading 3
2.1.1 Notation 3
2.1.2 Rayleigh Flat-Fading Channel Model 4
2.1.3 Unitary Space-Time Modulation 5
2.2 Standard Single-Antenna Differential Modulation 9
2.3 System Model of Uncoded DSTM 12
2.3.1 Signal Requirements for Differential Modulation 12
2.3.2 Differential Space-Time Modulator 14
2.3.3 Differential Reception 16
2.4 Connection Between Unknown And Known Channel 18
2.4.1 Known Channel 18
2.4.2 Connection Between Signal Designs 19
2.4.3 Connection Between Demodulation Strategies 21
3 Coherent-Approaching Differential Space-Time Modulation 23
3.1 Properties of Coherent-Approaching Differential Space-Time
Modulation 23
3.2 Some DFAC-DSTM Code 26
3.2.1 Group Constellations 26
A. Group Conditions 26
B. Unitary Group Codes 28
C. Diagonal Code 31
3.3 Non-DFAC-DSTM Code 37
3.3.1 TJ’s DSTBC 37
3.3.2 Unitary Space-Time Codes From Alamouti’s
SchemeWith APSK Signal 41
3.3.3 Parametric Codes 52
3.4 Trellis-Coded DSTM Coding Scheme 54
3.4.1 Modified TJ’s DSTM Scheme 52
3.4.2 DSTM Based on Generalized Multi-channel Amplitude
And Phase Modulation 62
4 Conclusions 70
參考文獻 [1] V. Tarokh and H. Jafarkhani, “A differential detection scheme for
transmit diversity,” IEEE J. Select. Areas Commun., vol. 18, pp.
1169-1174, Jul. 2000.
[2] B. L. Hughes, “Differential space-time modulation,” IEEE Trans.
Inform. Theory, vol. 46, pp. 2567-2578, Nov. 2000.
[3] B. M. Hochwald and W. Sweldens, “Differential unitary space-time
modulation,” IEEE Trans. Commun., vol. 48, pp. 2041-2052, Dec.
2000.
[4] X.-B. Liang and X.-G. Xia, “Unitary signal constellations for
differential space-time modulation with two transmit antennas:
parametric codes, optimal designs, and bounds,” IEEE Trans.
Inform. Theory, vol. 48, no. 8, pp. 2291-2322, Aug. 2002.
[5] C. Shan, A Nallanathan, and P. Y. Kam, “A new class of signal
constellations for differential unitary space-time modulation
(DUSTM),” IEEE Commun. Lett., vol. 8, pp. 1-3, Jan. 2004.
[6] S. Alamouti, “A simple transmit diversity technique for wireless
communications,” IEEE J. Select. Areas Commun., vol. 16, pp.
1451–1458, Oct. 1998.
[7] X.-G. Xia, “Differentially en/decoded orthogonal space–time block
codes with APSK signals,” IEEE Commun. Lett., vol. 6, pp. 150–152,
Apr. 2002.
[8] Song, G. Wang, W. Wu, and X.-G. Xia, “Unitary space-time codes
from alamouti's scheme with apsk signals,” IEEE Trans. on Wireless
Communications, vol. 3, pp.2374-2384, Nov. 2004.
[9] T. Himsoon,W. Su, and K. J. R. Liu, “Matrix rotation based signal
design for differential unitary space-time modulation,” in Proc. IEEE
WCNC, vol. 3, Atlanta, GA, Mar. 2004, pp. 1446–1450.
[10] F. Adachi & M. Sawahashi, “Decision Feedback Differential Phase
Detection of M-ary DPSK Signals,” IEEE Trans. on Veh. Tech., Vol.
44, No. 2, May, 1995, pp. 203-210.
[11] X. Shao, J. Yuan, “A New Differential Space-Time Block Coding
Scheme,” IEEE Commun. Lett., vol. 7, pp. 437–439, Sep. 2003.
指導教授 魏瑞益(Ruey-Yi Wei) 審核日期 2005-7-4
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