OFDM-SCDMA 在纜線數據機上的應用實現

AN IMPLEMENTATION OF OFDM-SCDMA APPLICATION ON CABLE MODEM

康沈義(Shen-yi Kang)

指導教授 ： 詹耀福

大同大學/電機資訊學院/電機工程學系所/碩士(2010年)

摘要

中文摘要
本篇論文提出如何有效地利用雙向光纖同軸混和網路，讓數位內容融入每個家庭。本論文的研究重點是將OFDM 引進DOCSIS 2.0 / 3.0 上行傳輸的傳送與接收系統架構。再利用硬體描述語言模擬OFDM-SCDMA 實現，首先將上行信的16QAM 及SCDMA 個別實現，然後再利用一個FFT Radix-4 蝴蝶模組加上控制電路及隨機存取記憶體來實現整個OFDM 架構。設計配合使用QuartusⅡ 7.0 軟體來驗證及模擬此系統之可行性。

關鍵字

纜線數據機

並列摘要

ABSTRACT
This thesis presents a method of two-way HFC (Hybrid Fiber Coaxial) cable network can be utilized effectively in every home. The system of OFDM will be realized in the DOCSIS 3.0 structure of the upstream in the transmitter and the receiver. The OFDM-SCDMA by Verilog language will be implemented. The first step is to use 16QAM and SCDMA in the upstream transmission system and the following step is to implement the OFDM structure by the Radix-4 butterfly controllable circuit and cache memory. We design and simulation of the whole system is achieved through QuartusⅡ 7.0.

並列關鍵字

CABLE MODEM

參考文獻

[5] CableLabs, “Data Over Cable Service Interface Specifications DOCSIS 3.0

[6] K. Fazel, “Performance of CDMA/OFDM for Mobile Communication System,”

Communication Technology, Oct. 2003.

[10] 宋麗青，”Design and Implementation of an FFT Processor with Efficient

REFERENCES