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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/70121


    Title: 非同調位元交錯編碼調變;Noncoherent Bit-Interleaved Coded Modulation
    Authors: 魏瑞益
    Contributors: 通訊工程系
    Keywords: 電信工程
    Date: 2016-03-29
    Issue Date: 2016-03-30 12:34:48 (UTC+8)
    Publisher: 科技部
    Abstract: 無線通訊常傳輸在連續衰退(continuous fading)通道上,而最適合此種通道的通道碼為位元交錯編碼調變(bit-interleaved coded modulation, BICM)。然而,同調BICM需要傳前導符元(pilot symbol)以做通道估測,但當通道變化較快速時,前導符元須傳送較頻繁,所導致的速率損失(rate loss)也較大。如果這時使用非同調編碼(例如相差編碼),在接收端可以使用非同調檢測,這樣就沒有前導符元的速率損失問題。 本計畫目標是針對連續衰退通道,設計比『使用前導符;The common channel model used for wireless communications is the continuous fading channel. Bit-interleaved coded modulation (BICM) is the most powerful channel code for such channel. However, coherernt BICM needs pilot symbols for channel estimation. If ;研究期間:10408~10507
    Relation: 財團法人國家實驗研究院科技政策研究與資訊中心
    Appears in Collections:[通訊工程學系] 研究計畫

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