基于多重分形小波GPON带宽分配算法  

On the GPON dynamic bandwidth allocation algorithm based on MWM

作　　者：嵇建波[1] 

机构地区：[1]桂林航天工业高等专科学校,广西桂林541004

出　　处：《光通信技术》2008年第7期15-17,共3页Optical Communication Technology

摘　　要：当前吉比特无源光网络中动态带宽分配算法主要是基于轮询机制,该算法是OLT根据各个ONU发送请求带宽信息进行动态分配带宽,但该算法不能实时获取各个ONU的请求信息。由于GPON网络业务流量具有多重分形特性,因此可以通过多重分形小波对网络流量进行预测,得到ONU实时的带宽信息。文章将预测结果应用于GPON上行信道动态带宽分配,提出一种改进动态带宽分配算法。Current Gigabit-capable passive optical network （GPON）dynamic bandwidth allocation algorithms are based on polling mechanism. Among these algorithms, bandwidth allocation can dynamically allocate bandwidth according to the Required signals of Optical Network Units（ONUs）, but it can＇t acquire ONU＇s Require signals .With Network traffic can be converted into multi-scale wavelet model, and the network trafficcan be predicted. Then the result can be applied to the GPON Dynamic Bandwidth Allocation. Finally, an improved dynamic bandwidth allocation algorithm is proposed.

关 键 词：吉比特无源光网络(GPON) 动态带宽分配(DBA) 多分形小波(MWM) 网络流量预测 

分 类 号：TN929.11[电子电信—通信与信息系统]