基于QoS的EPON系统动态带宽分配机制  

QoS-based Dynamic Bandwidth Allocation Mechanism for EPON

作　　者：刘小丽 

机构地区：[1]深圳键桥通讯技术股份有限公司,广东深圳518057

出　　处：《半导体光电》2012年第3期431-433,共3页Semiconductor Optoelectronics

摘　　要：通过阐述以太网无源光网络(EPON)系统信道传输数据方式以及动态带宽分配的工作原理,进一步研究了动态带宽分配算法(DBA)在EPON系统中的应用。提出一种基于服务质量(QoS)的EPON系统动态带宽分配机制,该机制根据不同业务的优先级和动态带宽分配算法,灵活地分配上行带宽,提高了带宽利用率,改善了服务质量。By analyzing the data transmission modes in EPON system and the theory of Dynamic Bandwidth Allocation（DBA）, the applications of DBA algorithm in the Ethernet Passive Optical Networks （EPON） system were researched. A new DBA mechanism based on Quality of Service （QoS） was proposed. Experiments show that the EPON system with the QoS-based DBA mechanism can allocate upstream bandwidth flexibly to improve the bandwidth utilization and quality of service according to the differences of business grades and the dynamic bandwidth allocation algorithm.

关 键 词：以太网无源光网络 动态带宽分配 服务质量 光网络单元 

分 类 号：TN915.6[电子电信—通信与信息系统]