使用分散式中繼點來幫助合作式通訊系統的訊號傳輸, 可以有效的延長通訊距離, 並且避免系統表現因通道衰弱而衰退, 此系統在合作式網絡的一條路徑失效時, 只會影響單一傳輸通道。因此, 使用分散式中繼點可以增加系統可靠性並降低融合中心解碼的錯誤率。
此篇論文重點在研究合作式通訊網絡使用編碼方式的表現,更明確的說, 本論文運用收縮碼的技術在使用編碼接收技術運作的分散式中繼點與終點的系統中。所獲得的結果顯示出, 使用收縮碼的表現確實勝過現有的使用編碼方式的系統, 此外, 所提出的方法相較於沒使用收縮碼的系統損耗更少的能源。

Using decentralized relays to help signals transmission for cooperative communication systems can extend the transmission distance effectively and prevent the degradation of the system performance caused by channel fading. It only affects the individual transmission channel when a path in the cooperative network fails. As a result, using decentralized relays increases the systems reliability and reduces the decoded error rates in the fusion center.
This thesis mainly investigates the performance of the cooperative communications networks using coding approach. Specifically, this thesis proposes to employ a punctured codes in the system, in which the decentralized relays and the destination are operated using coding reception techniques. The results obtained by the thesis show that the system employing punctured codes outperforms the systems using the coding approach in the existing works. Moreover, the proposed approach also consumes less energy as compared with the system without using
punctured codes.

摘要 i
Abstract ii
1 序論 1
1.1 文獻回顧. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 研究方法. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3 論文貢獻. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.4 論文架構. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 基本範例介紹與系統模型 4
2.1 基本範例介紹. . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.2 系統模型. . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . 6
3 中繼端量化接收訊號與融合中心的解碼 8
3.1 SCRS碼字集矩陣. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.2 中繼端碼字集設定並量化訊號傳送到融合中心解碼. . . . . . . . . . .10
3.3 結合收縮碼技術. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4 模擬結果和分析 15
4.1 碼字集矩陣錯誤率比較. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
4.2 系統結合收縮碼技術. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . .18
4.3 SCRS碼字集矩陣在不同中繼點數結合收縮碼技術. . . . . . . . . . . .21
5 結論 27
參考文獻 28

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