针对采用OFDM技术和ROF技术相结合的OFDM-ROF光无线传输系统在未来实际应用中可能会遇到的一些传输问题,通过系统仿真方式展开研究和讨论,并对一些研究结果进行简要汇报,内容包括:OFDM-ROF光无线传输系统的仿真实现、光纤信道特性对OFDM无线信号传输质量的影响问题,其中涉及到光纤的频率色散、偏振模色散以及非线性效应影响等几方面.通过仿真对各种影响因子对系统性能所造成的损害程度进行了数值分析.

This paper gives extensive study and discussion on the transmission problems of wireless signals in an OFDM-ROF optical wireless transmission system through the system simulation. This system is built with the combination of OFDM and ROF technologies and is taken for next generation mobile communications in the near future. Some study results are presented,including the realization of the OFDM-ROF simulation system and several transmission problems of OFDM wireless signals, which are affected by the characteristics of the optical fiber channel with respect of the chromatic dispersion (CD), polarization mode dispersion (PMD) and nonlinearity of the fiber. The numerical analyses are carried out for investigating the system performances damaged by these influence factors through the simulation