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Student Number 88521050
Author Ya-Wen Yang(楊雅雯)
Author's Email Address No Public.
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Department Electrical Engineering
Year 2000
Semester 2
Degree Master
Type of Document Master's Thesis
Language zh-TW.Big5 Chinese
Title Diversity codes for MPSK modulation in an AWGN channel
Date of Defense 2001-06-12
Page Count 55
Keyword
  • AWGN channel
  • CMF
  • diversity scheme
  • imperfect phase synchronization
  • ML
  • MPSK
  • Abstract A simple diversity scheme [2] which operates on an AWGN channel is proposed in this thesis. The transmitter consists of a nonlinear block encoder and MPSK modulator. Bandwidth-preserving, bandwidth-expanding and bandwidth-reducing signaling formats are considered. The performance analysis with maximum-likelihood (ML) coherent receiver is presented to detect the received diversity signal codeword by codeword. According to the union bound as the code merit figure (CMF), useful short diversity codes are searched based on the code search procedure and compared with error control codes. It is concluded that diversity systems using the found short-blocklength codes not only exhibit good performance gain but also little procession delay. The effect of imperfect phase synchronization to the proposed diversity coding systems is also taken into account in this thesis.
    Table of Content 圖表索引 iii
    第一章 緒論 1
    1.1 傳統分集計畫之簡介 ……………………………………1
    1.2 研究動機 …………………………………………………2
    第二章 系統模型 4
    2.1 分集碼相移鍵調變之系統模型 …………………………4
    2.2 接收信號的統計特性 ……………………………………6
    第三章 分集碼相移鍵調變之同調解調效能 10
    3.1 分集碼相移鍵調變之同調偵測演算與錯誤機率之分析 10
    3.2 分集碼之搜尋 ……………………………………………14
    3.2.1 頻譜效益保留 …………………………………… 14
    3.2.2 頻譜效益擴展 …………………………………… 21
    3.2.3 頻譜效益縮短 …………………………………… 30
    3.3 最佳分集碼相移鍵調變之同調偵測模擬結果與討論…35
    3.4 最佳分集碼相移鍵調變與錯誤更正碼的比較 ……… 39
    第四章 分集碼相移鍵調變之相位同步誤差效應之影響 47
    4.1 分集碼相移鍵調變之相位同步誤差信號模型 ……… 47
    4.2 最佳分集碼相移鍵調變之相位同步誤差模擬結果與討論
    ………………………………………………………… 48
    第五章 結論 55
    中英對照表 I
    參考文獻 V
    Reference [1] D. Divsalar and M.K. Simon, “The design of trellis coded MPSK for fading channels: Performance criteria and set partitioning for optimum code design,” IEEE Trans. Commun., vol. COM-36, pp. 1004-1022, Sept. 1988.
    [2] Char-Dir Chung and Fuh-Hsin Hwang, “Diversity coding technique for differential phase modulation in a correlated Rayleigh fading channel,” 11th IEEE Int. Symp. on PIMRC, vol. 1, pp. 232-236, 2000.
    [3] Athanasios Papoulis, Probability, Random Variables, and Stochastic Processes. 3rd ed. New York: McGraw-Hall, 1991.
    [4] S. Benedetto, E. Biglieri and V. Castellani, Digital Transmission Theory. Englewood Cliffs N.J.: Prentice Hall, 1987.
    [5] Fuh-Hsin Hwang, personal contribution.
    [6] Odenwalder, J. P., Error Control Coding Handbook. Linkabit Corporation, San Diego, Calif., July 15, 1976.
    [7] Jacobs, I. M., ”Practical Applications of Coding,” IEEE Trans. Inf. Theory, vol. IT20, pp. 305-310, May 1974.
    [8] Shu Lin and Daniel J. Costello, JR., Error Control Coding,
    Fundamentals and Applications. Englewood Cliffs N.J.: Prentice-Hall,1983.
    Advisor
  • Char-Dir Chung(鐘嘉德)
  • Files
  • 88521050.pdf
  • approve immediately
    Date of Submission 2001-06-12

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