近年來由於寬頻用戶的大幅增加以及網際網路多媒體服務需求的成長，刺激了大量語音(voice)、視訊(video)、數據(data)、無線(wireless)各方面的應用(Quad Play)。為了支援大量的訊號頻寬達到高品質的網路服務，都會光纖網路逐漸成為未來發展目標，光學正交分頻多工(Optical OFDM)傳輸之傳送接收器的實現就變得相當重要。在本論文中，我們設計一16路平行化運算處理之光學正交分頻多工基頻實體層接收機。基頻接收機(Baseband Receiver)包含了訊框封包偵測、載波頻率偏移之估測與補償、通道估測以及頻域等化器，並在光纖通道連接無線通道之模型下完成系統硬體之設計。由於光學正交分頻多工系統須達GS/s的需求，因此，本論文也提出並整合一高平行度之快速傅利葉轉換器(Parallel High Throughput FFT)來符合高速傳輸的目標，並以90nm UMC CMOS製程與Faraday cell library將設計之快速傅利葉轉換器以晶片的方式完成硬體實作。在經由完整測試驗證，所設計之快速傅利葉轉換器將可達到2.67GS/s的運算吞吐量。最後，將設計之高速FFT整合在系統上在16-QAM、64-QAM、以及256-QAM模擬BER結果。其中，模擬環境是以Matlab為interface主體連結C++及光纖通道VPI完成Co-simulation驗證。

In recent years, technology of communication devices is developed rapidly due to the growing demand for transmission system. In order to provide large bandwidth
for high quality services, realizing a transceiver for optical OFDM system becomes very important. In this thesis, we propose a design of the baseband receiver with a set of 16-way parallel processing for the optical OFDM system. The baseband receiver contains the frame detection, CFO estimation and compensation, channel estimation, and equalization. We complete the hardware design of the system and show the simulation results under the optical channel. Besides, this thesis proposes a fast Fourier transform(FFT)
with high parallelism based on pipeline architecture and integrate it in optical OFDM system to reach the high-throughput goal. Finally, the FFT processor is designed and implemented as a single chip using 90nm UMC CMOS technology and Faraday cell library. The chip with a set of 16-way parallel processing can achieve the throughput up to 2.67GS/s.

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