一种保证QoS的10G-EPON动态带宽分配算法  

A QoS-ensured Dynamic Bandwidth Allocation Algorithm in 10G-EPON Systems

作　　者：李丹[1] 

机构地区：[1]重庆邮电大学通信学院,重庆400065

出　　处：《通信技术》2012年第4期10-12,共3页Communications Technology

摘　　要：随着高清IPTV、在线游戏等业务的发展,用户对于带宽的需求日益增加,10G-EPON技术应运而生。与传统的EPON系统一样,10G-EPON系统的动态带宽分配问题仍然十分关键。带宽分配方式的选择对于如何避免传输冲突,提高系统的带宽利用率且保障服务质量都非常重要。在已有算法的基础之上,提出一种改进型动态带宽分配算法。该算法重点确保高优先级业务的服务要求,在一定程度上体现了不同等级ONU之间的公平性,提高了上行带宽利用率。With the development of HD IPTV,online games and so on,the users have increasing for the demands for the bandwidth and 10G-EPON technology arises at the historic moment.As the traditional EPON system,dynamic bandwidth allocation for 10G-EPON system is still a very critical problem.The choice of bandwidth allocation mode plays an important role in avoiding transmission conflicts,improving system bandwidth utilization and ensuring QoS（quality of service）.In this paper,a modified dynamic bandwidth allocation algorithm is proposed,which focuses on ensuring the high-priority business service,and to a certain extent,could reflect the fairness between ONUs with different levels,and also improve the upstream bandwidth utilization.

关 键 词：动态带宽分配 服务质量 公平性 带宽利用率 

分 类 号：TN914[电子电信—通信与信息系统]