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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/9375

    Title: 多層次時空編碼;Multilevel Space-time Codes
    Authors: 黃彰智;Chang-Chih Haung
    Contributors: 電機工程研究所
    Keywords: 時空編碼;多層次編碼;多級解碼;多樣性;行列式值;訊號星座圖;符號標記法;傳輸率;錯誤率效能;Space-time coding;multilevel coding;multistage decoding;diversity;determinant;signal constellation;labeling
    Date: 2002-06-14
    Issue Date: 2009-09-22 11:46:27 (UTC+8)
    Publisher: 國立中央大學圖書館
    Abstract: 論文摘要 本論文針對時空籬柵編碼,擬以多層次編碼(multilevel coding)技術來降低其複雜度,第三章以全多樣性(full diversity)之時空編碼為主題,採用[4]中的一個碼,來設計三個傳送天線的時空區塊編碼,並改變星座圖的符號標記法(labeling),以計算時空碼的行列式值(determinant)的方式,研究符號標記法與錯誤率效能的關係,並以此架構轉換成一時空籬柵編碼的架構,試圖找出除了延遲多樣性架構之外,設計時空籬柵編碼的準則。 第四章以非全多樣性的時空編碼為出發點,觀察在增加傳輸率的同時,相較於時空籬柵編碼錯誤率效能的下降幅度,研究其原因,並研擬改進的方法。 This thesis is aimed at space-time trellis coding, using multilevel coding technology to decrease complexity. Chapter 3 focuses on full diversity space-time codes, using a code in [4] to design a space-time block code which has three transmission antennas. We try to change signal labeling and calculate determinant in order to research error performance and transform this structure to a type of space-time trellis codes. Try to find a design method to construct space-time trellis codes instead of delay diversity scheme. Chapter 4 focuses on non-full diversity space-time codes which increase transmission rate and reduction of observe error performance. We also compare with space-time trellis coding in order to obtain more insights and improve its error performance.
    Appears in Collections:[電機工程研究所] 博碩士論文

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