EPON在铁通网络中的应用探讨

为了适应网络转型及固网宽带化的需要,EPON成为近几年来各大运营商相继采用的接入技术、通过介绍这项技术的原理,针对铁通网络现状,提出了三种典型组网应用方法,并就建设中需要注意的问题进行了探讨。     

PON技术及其组网原则

本文在简述PON技术的概念、工作原理与特点的基础上,讨论了PON技术分类以及在FTTX中的应用特点,着重说明PON技术网络规划中需要遵守的组网原则。     

Dynamic wavelength and bandwidth allocation using adaptive linear prediction in WDM/TDM ethernet passive optical networks

Hybrid wavelength-division-multiplexing (WDM)/time-division-multiplexing (TDM) ethernet passive optical networks (EPONs) can achieve low per-subscriber cost and scalability to increase the number of subscribers. This paper discusses dynamic wavelength and bandwidth allocation (DWBA) algorithm in hybrid WDM/TDM EPONs. Based on the correlation structure of the variable bit rate (VBR) video traffic, we propose a quality-of-service (QoS) supported DWBA using adaptive linear traffic prediction. Wavelength and timeslot are allocated dynamically by optical line terminal (OLT) to all optical network units (ONUs) based on the bandwidth requests and the guaranteed service level agreements (SLA) of all ONUs. Mean square error of the predicted average arriv-ing rate of compound video traffic during waiting period is minimized through Wiener-Hopf equation. Simulation results show that the DWBA-adaptive-linear-prediction (DWBA-ALP) algorithm can significantly improve the QoS performances in terms of low delay and high bandwidth utilization.     

EPON与GPON技术分析比较

EPON和GPON是无源光网络技术的两大主流技术,未来是EPON还是GPON成为现实主导一直被业界普遍关注。重点从宽带利用率,OAM功能,互通性。成本等方面对EPON和GPON进行分析和比较。     

EPON在铁路通信系统中的应用

以EPON技术在铁路中的应用,简单叙述无源光网络在铁路通信应用的前景,以及应用无源光网络较目前铁路通信接入技术的优势。     

浅谈EPON网络建设方案

为解决目前接入网络存在的问题,提出采用EPON接入技术.分析EPON网络结构、技术特点及运营优势,浅谈EPON网络建设原则,以及针对不同用户的应用方案,扩大了网络带宽,提高了网络安全.     

铁通公司市场发展需要EPON技术

通过对公司现有宽带业务接入方式和EPON接入技术的介绍,阐述公司未来发展需要EPON接入技术。