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| 研究生： |
盧明宏 Ming-Hung Lu |
|---|---|
| 論文名稱： |
循環字首及補零正交分頻多工系統經預編碼後之頻譜比較 Spectrum Comparisons of Precoded CP-OFDM and ZP-OFDM Systems |
| 指導教授： |
鐘嘉德
Char-Dir Chung 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 |
| 畢業學年度： | 94 |
| 語文別： | 中文 |
| 論文頁數： | 81 |
| 中文關鍵詞： | 正交分頻多工系統 、功率頻譜密度 、頻譜 |
| 外文關鍵詞： | Spectrum, OFDM, Power Spectral Density |
| 相關次數： | 點閱：15 下載：0 |
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由於正交分頻多工系統（ Orthogonal Frequency Division Multiple, OFDM ）已成為現今寬頻通訊系統之重要技術，因此改進OFDM之性能已成為重要的課題。在本篇論文中我們將針對當OFDM訊號在通過解決ICI問題、增加分集效應以及降低峰均值之預編碼後的頻譜效應來討論，並比較各個演算法外頻譜（out of band）及內頻譜平坦度(in-band flatness)的差異。
Orthogonal Frequency Division Multiple has become one of the key technologies in broadband communication systems nowadays. Improving the system performance of OFDM is therefore essential. The precoded-OFDM schemes for solving ICI problem, increasing diversity, and reducing PAPR are discussed in this thesis, inclusive of comparing the differences between out-of-band spectrum and in-band flatness.
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