基于DD-MZM自干扰消除的带内全双工光载无线系统

Research on in-band full-duplex radio-over-fiber system based on self-interference cancellation using DD-MZM

为提升无线频谱资源利用率,扩展无线通信容量,设计了一种带内全双工光载无线系统。系统基于双驱动马赫曾德尔调制器(DD-MZM)实现宽工作频带的自干扰消除。利用Optisystem搭建了实验系统,通过Matlab仿真无线信道,验证并分析该带内全双工无线系统的传输性能。

In order to promote wireless spectrum efficiency and enlarge wireless communication throughput, this paper describes a kind of in-band full-duplex radio-over-fiber system. The system employs a dual-drive Mach-Zehnder modulator （DDMZM） and achieves good self-interference cancellation over broad band. Optisystem is used to build a radio-over-fiber system, while Matlab is used to simulate wireless channel, both for proving and analysing the transmission performance of the in-band full-duplex radio-over-fiber system.