摘要
在研究传统使用WDM-PON方法来实现传统的点播数据和下行数据流的组播功能的基础上,针对现存的组播业务方案进行分析。为保证组播业务中下行信号具有较好消光比,提出一种改进型的组播方案,仿真实验表明,该方案降低了实现设备的复杂度、建设成本,提高了系统传输性能。
In the tradition of research using the WDM-PON method to the traditional on-demand data and downstream multicast function on the basis of analysis of existing multicast service program to guarantee the multicast traffic in the downlink signal has a good extinction ratio, multicast scheme, put forward an improved simulation results show that the program reduces the complexity of the realization of equipment, construction costs, improve the system transmission performance.
出处
《光通信技术》
CSCD
北大核心
2012年第9期49-52,共4页
Optical Communication Technology
基金
江西省教育厅青年科学基金项目(GJJ11112)资助
华东交通大学校立科研课题(11XX03)资助
