| 研究生: |
余泊鎧 Yu, Po-Kai |
|---|---|
| 論文名稱: |
在不同調變下之錯誤控制碼性能研究 Study on Error Control coding with Different Modulation Schemes |
| 指導教授: |
張名先
Chang, Ming-Xian |
| 學位類別: |
碩士 Master |
| 系所名稱: |
電機資訊學院 - 電腦與通信工程研究所 Institute of Computer & Communication Engineering |
| 論文出版年: | 2011 |
| 畢業學年度: | 99 |
| 語文別: | 中文 |
| 論文頁數: | 47 |
| 中文關鍵詞: | 錯誤控制碼 、重複碼 、漢明碼 、摺積碼 、硬式決策 、軟式決策 |
| 外文關鍵詞: | error control coding, repetition codes, hamming codes, convolution codes, hard decision, soft decision |
| 相關次數: | 點閱:183 下載:0 |
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錯誤控制碼在通訊領域中是一項相當重要的技術,經由通道編碼與解碼,接收端能夠獲得更可靠的資料。然而,可靠性和有效性往往是相互矛盾的。因此,如何依據不同條件選擇最合適的錯誤控制碼也成為一個值得探討的議題。
在本篇論文中,我們研究相位移鍵(PSK)以及頻率移鍵(FSK)兩類調變下,分別使用重複碼(repetition code)、漢明碼(hamming code)和摺積碼(convolution code)進行編碼的位元錯誤率,其中我們亦考慮不同通道下以硬式決策(hard decision)和軟式決策(soft decision)進行解碼的結果。我們並觀察使用與不使用錯誤控制碼的位元錯誤率(BER)曲線。
Error control coding is a very important technique in communications. By using the channel encoding and decoding, the receiver can acquire more reliable data. However, reliability and effectiveness are usually in conflict with each other. Therefore, how to select the most suitable error control code according to different situations also becomes an issue which is worthy of discussion.
In this thesis, we study the bit-error rates of PSK and FSK modulations using repetition codes, hamming codes and convolution codes. We also consider the results in different channels with hard decision and soft decision. We observe the cross points in the bit-error rate curves for transmission with and without error control coding.
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校內:2014-07-27公開