Optical Switching and Networking ( IF 1.9 ) Pub Date : 2022-08-23 , DOI: 10.1016/j.osn.2022.100711 Garima , Vivekanand Jha , Rakesh Kumar Singh
10-Gigabit passive optical network (XG-PON) has emerged as an effective architecture to meet today's growing demand for bandwidth in the family of next-generation passive optical networks (NG-PON). It supports various quality of services such as voice, video live streaming, network browsing, etc., where these services demand bandwidth, which is limited. To overcome this limitation, bandwidth management schemes are employed by central authorities such as optical line terminals (OLT). Several dynamic bandwidth allocation (DBA) schemes exist for XG-PON in the literature, but these lack in detailed information about XG-PON and a comparison of various DBA schemes in one place. Therefore, this paper presents a detailed architecture of XG-PON and comprehensively reviews the existing dynamic bandwidth allocation schemes for the XG-PON system. This paper further identifies and implements majorly adopted bandwidth allocation schemes such as GIANT, X-GIANT, IACG, and EBU using a pre-existing module of XG-PON in the network simulator 3 (NS-3) simulation framework. The results have been obtained in two phases having different traffic scenarios, where, in phase 1, the load of all ONUs has been increased simultaneously, and in phase 2, the load of only one ONU has been increased. The obtained results have been analysed in terms of various network performance metrics. Hence, this paper reviews the available DBA schemes and provides a comprehensive analysis of the identified important DBA schemes.
中文翻译:
XG-PON系统动态带宽分配方案的综合性能分析
10-Gigabit 无源光网络 (XG-PON) 已成为一种有效的架构,可满足当今下一代无源光网络 (NG-PON) 系列对带宽不断增长的需求。它支持各种质量的服务,例如语音、视频直播、网络浏览等,这些服务需要的带宽是有限的。为了克服这一限制,中央机构采用带宽管理方案,例如光线路终端 (OLT)。文献中存在几种用于 XG-PON 的动态带宽分配 (DBA) 方案,但这些方案缺乏关于 XG-PON 的详细信息以及在一处比较各种 DBA 方案。因此,本文介绍了 XG-PON 的详细架构,并全面回顾了现有的 XG-PON 系统动态带宽分配方案。本文使用网络模拟器 3 (NS-3) 仿真框架中的 XG-PON 预先存在的模块,进一步识别和实施主要采用的带宽分配方案,如 GIANT、X-GIANT、IACG 和 EBU。结果在两个不同业务场景的阶段得到,第一阶段所有ONU的负载同时增加,第二阶段仅增加一个ONU的负载。已根据各种网络性能指标对所获得的结果进行了分析。因此,本文回顾了可用的 DBA 方案,并对已确定的重要 DBA 方案进行了全面分析。EBU 在网络模拟器 3 (NS-3) 模拟框架中使用 XG-PON 的现有模块。结果在两个不同业务场景的阶段得到,第一阶段所有ONU的负载同时增加,第二阶段仅增加一个ONU的负载。已根据各种网络性能指标对所获得的结果进行了分析。因此,本文回顾了可用的 DBA 方案,并对已确定的重要 DBA 方案进行了全面分析。EBU 在网络模拟器 3 (NS-3) 模拟框架中使用 XG-PON 的现有模块。结果在两个不同业务场景的阶段得到,第一阶段所有ONU的负载同时增加,第二阶段仅增加一个ONU的负载。已根据各种网络性能指标对所获得的结果进行了分析。因此,本文回顾了可用的 DBA 方案,并对已确定的重要 DBA 方案进行了全面分析。