中国电机工程学报Issue(12)：3037-3046,10.DOI:10.13334/j.0258-8013.pcsee.2015.12.014
智能配电网EPON系统改进加权动态带宽分配算法及时延特性研究
Study on an Improved Weighted IPACT Algorithm and Delay Characteristics for EPONs in Smart Distribution Networks
摘要
Abstract
Ethernet passive optical network (EPON) technology as one of the primary technologies for access networks has been selected by the smart distribution networks. This paper presented an improved weighted interleaved polling with adaptive cycle time (IW-IPACT) algorithm based on business rate according to the quality of service (QoS) requirement of each traffic class, especially on the requirement of new protection and control technique. A virtual weighted buffer queue for bandwidth requirements of EPON was constructed during a polling cycle. The bandwidth of optical network unit (ONU) is granted from the optical line terminal (OLT) considering the polling rate of the EPON. In addition, in order to evaluate the real-time performance of the IW-IPACT algorithm in EPON, a new delay bound calculation method of each traffic class was derived by network calculus theory. The evaluating results indicate that bandwidth utilization of EPON is improved by the IW-IPACT algorithm. Meanwhile, the calculus and OPNET simulation results also show that EPON can meet the real-time application requirement of basic traffic class and the relay protection.关键词
智能配电网/以太网无源光网络系统/继电保护/改进加权间插轮询动态带宽分配算法/网络演算/OPNET软件Key words
smart distribution networks/Ethernet passive optical network systems (EPONs)/relay protection/improved weighted interleaved polling with adaptive cycle time (IW-IPACT) algorithm/network calculus/OPNET分类
信息技术与安全科学引用本文复制引用
肖繁,张哲,尹项根..智能配电网EPON系统改进加权动态带宽分配算法及时延特性研究[J].中国电机工程学报,2015,(12):3037-3046,10.基金项目
国家自然科学基金项目(51177058)。Project Supported by National Natural Science Foundation of China (51177058) （51177058）
