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研究生： 邱則融
Ze-Rong Ciou
論文名稱： 相差位元交錯編碼之8PSK
Differential Bit-Interleaved Coded 8PSK
指導教授： 魏瑞益
Ruey-Yi Wei
口試委員:
學位類別： 碩士
Master
系所名稱： 資訊電機學院 - 通訊工程學系
Department of Communication Engineering
論文出版年： 2013
畢業學年度： 101
語文別： 中文
論文頁數： 56
中文關鍵詞： 相差位元交錯編碼
相關次數： 點閱：10  下載：0 
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    • 位元交錯編碼調變是適合連續衰退通道的通道碼，而位元交錯編碼調變加上遞迴解碼則可提供比位元交錯編碼調變更佳的錯誤效能。因為使用前導符元估測通道係數的同調位元交錯編碼調變會造成速率損失，所以我們在位元交錯編碼調變(或使用遞迴解碼之位元交錯編碼調變)的傳送端使用相差編碼，並使用不同的非同調接收端，以電腦模擬其錯誤效能。在本篇論文中，我們使用了三種不同位元計量，其在雷列連續衰退通道下可以比一般使用前導符元的做法達到更佳的錯誤效能。我們更進一步使用遞迴解碼，經由模擬發現使用遞迴解碼之位元交錯編碼調變，其錯誤效能皆比無遞迴解碼之位元交錯編碼調變佳。

    Bit-Interleaved Coded Modulation (BICM) is a suitable channel coding in continuous fading channel. BICM with iterative decoding (BICM-ID) can provide better performance than BICM. But using pilot symbols will cause rate loss, so we add a differential encoder at the transmitter, and try different noncoherent receivers. We use computers to simulate the BICM (or BICM-ID) systems. In this thesis, we try three different metrics which can achieve better error performance than the system which uses pilot symbols. We further adopt iterative decoding at the receiver, and we observe that BICM-ID have better performance than BICM by simulation.

    目錄 摘要................................................................I Abstract.......................................................................II 誌謝.............................................................III 目錄………………………………………………………………..VI 圖表目錄.....................................................................VIII 第一章 緒論...................................................1 1.1研究動機................................................1 1.2內容介紹............................................1 第二章 回顧位元交錯編碼調變...................................3 2.1迴旋碼基本架構.........................................3 2.2 位元擷取技術.............................................6 2.3 位元交錯器...............................................7 2.4維特比解碼演算法.....................................8 2.5位元交錯編碼調變系統架構..........................9 2.6同調位元交錯編碼調變之位元計量..................12 第三章 相差位元交錯編碼調變..................................15 3.1 雷列衰退通道.........................................15 3.2前導符元插入的同調系統……...................18 3.3 相差位元交錯編碼調變..............................20 3.3.1 相差位元交錯編碼調變之傳送端…..………20 3.3.2第一種位元計量................................20 3.3.3第二種位元計量................................21 3.3.4第三種位元計量................................22 第四章 使用遞迴解碼之相差位元交錯編碼調變.................30 4.1使用遞迴解碼之位元交錯編碼調變與前導符元輔助 之調變回顧………………………………...……30 4.2接收端使用第三種位元計量與遞迴解碼……...35 第五章 結論....................................................43 參考文獻............................................................44

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