摘要
未来通信的发展方向将是光通信与无线通信的结合。OFDM光载无线(OFDM-ROF)将无线通信和光纤通信的优点结合起来,具有高速率、高容量和高带宽利用率的优点。非线性是OFDM-ROF系统存在的主要问题之一,降低非线性对系统影响的主要方法有降低峰值功率比(PAPR)、加循环前缀、信道估计、非线性补偿等。
The future development direction of communication is the combination of optical communication and wireless communication.OFDM-ROF systems combined optical communication and wireless communication,the advantages of it is high tare,high capacity and high bandwidth utilization. One of the main problems of OFDM-ROF systems is nonlinearity.The meth- ords that can reduce nonliear impact on the system are reducing PAPR,plusing Cyclic Prefix,Channel Estimation ,Nonlinear Compensation and so on.
出处
《信息通信》
2012年第5期167-168,共2页
Information & Communications
