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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/8073


    Title: IEEE 802.16-2004分時雙工正交分頻多工之下行碼框時序同步效能研究;IEEE 802.16-2004 TDD OFDM Downlink Frame Timing Synchronization
    Authors: 吳志中;Chih-Chung Wu
    Contributors: 通訊工程研究所
    Keywords: 碼框時序同步;偽多重路徑疊代演算法;正交分頻多工;IEEE 802.16-2004;Frame Timing Synchronization
    Date: 2005-06-24
    Issue Date: 2009-09-22 11:17:24 (UTC+8)
    Publisher: 國立中央大學圖書館
    Abstract: 本篇論文主要是針對IEEE 802.16-2004在碼框時序同步上做一個探討,主要的傳輸系統是使用正交分頻多工(Orthogonal Frequency Division Multiple,OFDM)架構。首先,本篇論文會先探討由IEEE上所選的兩篇時序同步的文獻套用在IEEE 802.16-2004系統上,並且分別對於浮點數(Floating Point)與定點數(Fixed point)做一個模擬與比較。   接下來,在本篇論文裡提出一個「偽多重路徑疊代演算法」(Pseudo-Multipath Iterative Algorithm,PMIA),主要是用疊代的方法來改善碼框時序同步的效能。本論文裡還分別將PMIA套用在先前所選的兩篇文獻上,並且探討在不同的參數下的改善效果。 The thesis takes a discussion on frame timing synchronization in IEEE 802.16-2004 standard and Orthogonal Frequency Division Multiple(OFDM)scheme is chosen as the main transmission structure. Firstly , we covers two articles about timing synchronization technology in IEEE and apply it to the IEEE 802.16-2004 system simulating and comparing floating point and fixed point cases respectively. What follows is that we propose a pseudo-multipath iterative algorithm(PMIA) which mainly improves the performance of frame timing synchronization by iterative approach. Finally, we apply PMIA to the technique reported in the two denoted articles previously and try to interpret each performance improvement under different parameters.
    Appears in Collections:[通訊工程研究所] 博碩士論文

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