基于周期轮询的GPON上行链路动态带宽分配算法

【摘要】 本文对GPON基本原理以及MAC层上行链路DBA机制进行了深入分析和介绍。在此基础上,遵照ITU-T规范,提出了一种基于周期轮询的GPON上行链路DBA算法。这种DBA算法,可实现包括五种T-CONT类型,四种带宽分配方式在内的上行链路动态带宽分配,支持多种Qos业务。文中最后,对提出的DBA算法性能进行了简要仿真分析。更多还原

【Abstract】 This paper first introduces the basics of GPON and analyzes the upstream DBA (dynamic bandwidth assignment) mechanisms of the MAC layer. And then a GPON upstream DBA algorithm based upon cyclic polling is proposed according to the ITU-T specifications. The proposed algorithm can support five types of T-CONT and four types bandwidth assignment, thus can support various Qos services. At the end of the paper, the author give a brief analysis of the simulation results of the algorithm.更多还原