- 期刊
Phase Noise Mitigation Algorithm in 60 GHz RoF System
60-GHz光載微波無線訊號系統中相位雜訊抑制演算法
摘要
60 GHz頻段在這幾天來蓬勃的發展，世界上主要的科技電子公司都投入資源在相關的技術研發上，60 GHz被設定為室內使用的無線架構，但將訊號送至無線基地台的過程中，使用高頻的同軸電纜太過昂貴，而光載微波訊號系統在成本考量下就成了最好的傳輸系統。在光載微波訊號傳輸系統中，會由於做為訊號載波用的雷射光源的線寬以及光纖的色散現象而產生相位雜訊，而由色散以及雷射線寬所引起的相位雜訊會隨著光纖傳輸距離的增加與雷射線寬的大小的不同而有不同程度的影響並且降低訊號的品質。¬¬¬在本研究中建立了相位雜訊的模型，並以數位訊號處理的方式降低相位雜訊對於訊號的影響，進而提升訊號的品質或是資料傳輸率。
並列摘要
The demand for the wireless bandwidth is increasing and in near future a few Gbps over wireless willbe needed. The best way to provide the such high capacity wireless is over 60 GHz because of thehuge 7 GHz unlicensed bandwidth. The radio-over-fiber (RoF) systems provide efficient ways fortransportation and distribution of high frequency signals such as 60 GHz. The phase noise (linewidth)laser light source and fiber dispersion in the RoF system will induce the impairment of the signal andlimit the transmission distance and data rate. In this research, the phase noise model and mitigationalgorithm are built up and reduce the bit-error-rate under the FEC limit through over 100 kmtransmission and DFB laser. Combine with bit-loading, the data rate can improve over 15% with 100km fiber transmission.
延伸閱讀
- Hsieh, C. Y. (2010). 60-GHz 緩衝放大器與低相位變異可變增益放大器之研製 [master's thesis, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU.2010.01321
- Yang, Y. M. (2011). 正交多頻分工技術之I/Q不平衡補償於60GHz光載微波無線訊號系統 [master's thesis, National Chiao Tung University]. Airiti Library. https://doi.org/10.6842/NCTU.2011.00929
- 藍珣（2009）。60GHz 低雜訊放大器與毫米波高畫質影像無線傳輸系統〔碩士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2009.02374
- Shih, P. T. (2010). 超高頻光毫米波產生與60-GHz光載微波無線訊號系統 [doctoral dissertation, National Chiao Tung University]. Airiti Library. https://doi.org/10.6842/NCTU.2010.01057
- He, L. Y. W. (2010). 動態式OFDM調變與60-GHz光載微波無線訊號系統 [master's thesis, National Chiao Tung University]. Airiti Library. https://doi.org/10.6842/NCTU.2010.01038