本論文研究利用射頻光纖 (radio over fiber, RoF) 模組延伸行動網路的覆蓋範圍。為了探討RoF在大樓安裝時能測到最好的效益，先將RoF模組化，利用RoF模組來實際量測並分析不同通道之干擾問題以及最佳傳輸距離。
將RoF訊號進行多點傳輸可採用兩種架構:電分多路與光分多路。由量測所得單通道與雙通道的誤差向量大小(Error Vector Magnitude, EVM)，證明RoF利用多個路徑傳送可增加訊號的涵蓋範圍，並量測在64QAM標準下兩個RAU在電分兩路架構下可涵蓋14公尺範圍，在光分兩路架構下可涵蓋12公尺。
將RoF模組應用於傳輸WiMAX訊號，使用上行速率2Mbps，下行速率4Mbps網卡量測，在電分兩路與光分兩路架構下，兩個RAU間距16公尺的下行速率可達2Mbps，兩個RAU間距20公尺的上行速率可達1.8Mbps。另外由WiMAX RoF的載波干擾雜訊比 (Carrier to Interference-plus-Noise Ratio, CINR)、接收訊號強度指示 (Received Signal Strength Indicator, RSSI)，與吞吐量 (throughput)參數，證明傳輸速率與接收功率和網卡提供功率有關。

In this thesis, the use of radio-over-fiber (RoF) module to extend the coverage of mobile networks is investigated. In order to explore the characteristics of applying the RoF technology in buildings, we developed RoF modules and analyze the interference among different channels and the maximal span that RoF module can cover.
The point-to-multipoint transmission of RoF signals can be implemented is two ways : electrical splitting and optical splitting. Based on the measured EVM values, the use of RoF modules can expand the coverage of RoF signals. The measured results for 64-QAM signals show that the use of two RAUs can provide good signal coverage when the two RAUs are spaced by 14 m and 12 m for electrical splitting and optical splitting case, respectively.
The RoF module is used to transmit WiMAX signals by using dongles to transmit 2 Mbps uplink data and 4 Mbps downlink data. Under the architecture of electrical splitting and optical splitting, the downlink data rate of 2 Mbps can be achieved when the two RAUs are spaced by 16 m and uplink data rate of 1.8 Mbps can be achieved when the two RAUs are spaced by 20 m. Moreover, from the measured CINR, RSSI, and throughput parameters of WiMAX signals, the transmission data rate depends strongly on the received power and the signal power provided by the dongles.

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