摘要
光载无线通信(ROF)技术是通信业宽带化和无线化的产物,该技术将光纤通信技术与毫米波通信技术进行融合,具有广阔的应用前景。目前世界众多国家在60GHz毫米波频段相继划出免许可连续频谱,这使得60GHz毫米波无线通信成为近距离无线通信领域的研究热点之一。为了降低ROF系统的成本,提高系统的性能,提出了一种改进的基于前向调制(FFM)技术生成60GHz毫米波方案,分析了系统各光电器件的工作原理,仿真了不同的参量设置对系统性能的影响曲线。该方案结合了前向调制技术和光波分复用技术的优点,简化了整个系统的复杂程度,降低了ROF系统的造价成本,同时减小了误码率,提高了系统的性能。
A radio over fiber （ROF） system is a product of the broad band and wireless in the communication industry. It combines the optical fiber communication technology and millimeter-wave communication technology, and has a broad application prospect. At present many countries mark off unlicensed continuous-frequency spectra in 60 GHz millimeter wave frequency band, which makes 60 GHz millimeter-wave wireless communication become one of the hot researches in the field of close wireless communication. In order to reduce the cost of a ROF system and improve its performance, an improved 60 GHz millimeter-wave generator based on feed-forward modulation （FFM） technique is proposed. The principle of the photoelectric device is analysed and the effect of different parameters setting in the performance of the system curve is simulated. The scheme combines with the advantages of forward modulation technology and light wavelength division multiplexing technology. It simplifies the complexity of the system, reduces the cost of the ROF system, reduces the error rate and improves the performance of the whole system.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2013年第2期26-31,共6页
Acta Optica Sinica
基金
国家自然科学基金(61177069,61275076)
教育部博士点基金(20090009110003)
中央高校基本科研业务费专项(2011YJS219)资助课题
关键词
光通信
微波光子学
光载无线通信
前向调制技术
光纤通信
optical communications
microwave photonics
radio over fiber
feed-forward modulation technique
optical-fiber communication
