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Predictive Credit Based Dynamic Bandwidth Allocation Mechanisms in Ethernet Passive Optical Network

机译：以太网无源光网络中基于预测信用的动态带宽分配机制

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Ethernet passive optical networks (EPON) is being considered as promising solution for next-generation broadband access network. EPON has the features of low-cost Ethernet deployment and highspeed optical connections. The mission of IEEE 802.ah Task Force is to construct a solid structure for deployment where it defines the multi point control protocol (MPCP) and leaves details of dynamic bandwidth allocation (DBA) for vendors and researchers. ONU and OLT exchange REPORT and GATE messages to coordinate the transmission time and bandwidth allocation fro upstream traffic. Quality of service (QoS) is one of the main features required in EPON. Delay-sensitive applications, such as VoIP, video streaming, should be taken care. In this paper, we will investigate the ideas of predictive credit mechanism in EPON. If a suitable credit is assigned, some packets won''t have to wait another cycle time to get transmitted. We have found that the packet delay can be shorter by sacrificing a little bandwidth in some scenarios. We have shown and proposed several predictive credit mechanisms and compared them to the mechanism without prediction
机译：以太网无源光网络（EPON）被认为是下一代宽带接入网络的有前途的解决方案。 EPON具有低成本以太网部署和高速光连接的特点。 IEEE 802.ah工作队的任务是构造一个坚实的部署结构，其中定义多点控制协议（MPCP），并为供应商和研究人员保留动态带宽分配（DBA）的详细信息。 ONU和OLT交换REPORT和GATE消息，以协调上游业务的传输时间和带宽分配。服务质量（QoS）是EPON所需的主要功能之一。时延敏感的应用程序，例如VoIP，视频流，应格外小心。在本文中，我们将研究EPON中的预测信用机制的思想。如果分配了适当的信用，则某些数据包将不必等待另一个循环时间即可传输。我们发现，在某些情况下，可以通过牺牲一点带宽来缩短数据包延迟。我们已经展示并提出了几种预测信用机制，并将它们与没有预测的机制进行了比较

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