移動環境下OFDM通訊系統的符元同步時間估測

The Symbol Synchronization Timing Estimation for an OFDM Communication System in mobile Environments

王忠鵬(Chung-Peng Wang)

指導教授 ： 鄭士康

國立臺灣大學/電機資訊學院/電信工程學研究所/碩士(2006年)

https://doi.org/10.6342/NTU.2006.10195

摘要

最近幾年來正交分頻多工(OFDM)，被廣泛的運用在數位電視廣播系統DVB；無線區域網路802.11a/g，未來的第四代行動通訊也將採用此系統。但是目前的多媒體服務，還是以定點無線接取為主，在移動的交通工具中，目前還是無法應付多媒體的頻寬，原因是移動所產生的Doppler效應和都市環境中複雜的多路徑干擾所造成。
因此本論文在因應移動的環境下，改善原有的同步符元時間估測技術，希望能得到較佳的效能

關鍵字

OFDM ； Synchronization

並列摘要

In recent years, Orthogonal Frequency Division Multiplexing (OFDM) technique has widely used in digital television broadcast system (DVB),wireless LAN 802.11a/g. Even the Forth generation of mobile communication in the future will also apply this technique .However, the multimedia service nowadays is mainly about fixed access. Because, in mobile transportation,it still could not perform well for the bandwidth of multimedia ,which is caused by the Doppler effect during mobile and the multi-path interference in the urban area.
Therefore,in this thesis, I will present how to improve the synchronization symbol timing estimation technique in the mobile environment ,in order to get better performance .

並列關鍵字

正交分頻多工 ； 同步

參考文獻

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