分析在無線蝴蝶式網路下各種通訊協定效能.

Abstract

在這篇論文中，我們的目標是提高無線蝴蝶式網絡的效能,而中間節點被認定是一個中繼傳輸點。各種傳輸協議在此被運用並仔細地分析各個相對應的傳輸效率。在我們使用的中繼點利用解碼並轉發（DF）或放大並轉發（AF）通訊協議來處理接收到的信號。特別是在DF傳輸模式下，我們將合併兩個獨立的解碼消息藉由二元或複數空間網絡編碼（BNC及CNC）。在傳輸方法上無碰撞（CF）和多接收通道（MAC）也一併使用在內。對於每個通訊協定的性能分析使用DMT且在衰落通道中。

In this thesis, we aim to improve the throughput and error performances of wireless butterfly network, where the intermediate node is viewed as a relay node. Various transmission protocols are considered. At the relay node we consider the cases of using decode-and-forward (DF) or amplify-and-forward (AF) protocol for the received signals. In particular, in DF transmission mode, the two independent decoded messages, each transmitted by a different sender, are re-encoded using a binary or complex-field network code (BNC or CNC). Transmission schemes targeting at collision-free (CF) and multiple-access-channel (MAC) are also included. Performance analyses of each protocol based on the diversity-and-multiplexing tradeoff (DMT) are given in detail in this thesis.