Analysis of IPACT network performance considering channel switch latency for WDM-EPON  

作　　者：周钊 肖石林 朱敏 毕美华 

机构地区：[1]State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiaotong University

出　　处：《Chinese Optics Letters》2011年第6期24-27,共4页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos. 60972032 and60632010);the National "863" Program of China(Nos. 2006AA01Z251 and 2007AA01Z271)

摘　　要：In wavelength-division multiplexing （WDM） ethernet passive optical networks （EPONs）, to realize the statistical multiplexing of upstream wavelength resources, some optical tunable components are introduced in the optical network units. However, the switch latency （SL） of these tunable components constrains the performance of WDM-EPON. In this letter, we extend the mathematical model of the WDM interleaved polling with adaptive cycle time （IPACT） scheme by additionally considering the SL conditions. We also investigate the effect of channel SL on network performance. The simulation results show that the performance of WDM-IPACT-SL deteriorates as the SL increases.In wavelength-division multiplexing （WDM） ethernet passive optical networks （EPONs）, to realize the statistical multiplexing of upstream wavelength resources, some optical tunable components are introduced in the optical network units. However, the switch latency （SL） of these tunable components constrains the performance of WDM-EPON. In this letter, we extend the mathematical model of the WDM interleaved polling with adaptive cycle time （IPACT） scheme by additionally considering the SL conditions. We also investigate the effect of channel SL on network performance. The simulation results show that the performance of WDM-IPACT-SL deteriorates as the SL increases.

关 键 词：ETHERNET ETHERS Fiber optic networks Mathematical models MULTIPLEXING Multiplexing equipment Network performance Switching circuits 

分 类 号：TN929.11[电子电信—通信与信息系统]