摘要
提出了基于阵列波导光栅路由器(AWGR)的混合光波长路由与电分组交换的数据中心网络架构HWRE,并对其光源部署方案进行了设计与分析.对HWRE架构的网络性能,如分组端到端时延、网络吞吐量和波长请求阻塞率等,进行了理论分析与仿真实验.分组端到端时延的分析基于M/G/1排队模型,分析结果显示相比其他架构,HWRE的分组端到端时延较低.对网络吞吐量和波长请求阻塞率的分析基于HWRE架构的三种光源部署方案,即全固定波长激光器方案、混合固定波长激光器和波长可调谐激光器方案以及多波长光源方案.仿真结果显示基于多波长光源方案的HWRE架构具有较低的波长请求阻塞率和较高的网络吞吐量.
The arrayed waveguide grating router（AWGR）-based opto-electrical data center network architecture with hybrid optical wavelength routing and electrical packet switching（HWRE）was proposed.Performance evaluations of HWRE were carried out in terms of end-to-end packet delay,network throughput and wavelength request blocking probability.M/G/1queuing model was utilized to analyze the end-to-end packet delay.Results show that HWRE has much lower packet delay compared with other DCNs.Three different light source plans of HWRE were also presented.They were with fixed-wavelength laser diodes（LDs）,hybrid fixed-wavelength LDs and wavelength-tunable LDs,as well as multi-carrier light source（MCLS）.The network throughput and wavelength request blocking probability were evaluated for the three light source plans.Simulation results show that the MCLS has better network throughput and wavelength request blocking probability performance compared with the other two light source plans.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2015年第5期79-83,共5页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(61301119)
高等学校博士学科点专项科研基金资助项目(20120191120025)
教育部留学归国人员启动基金资助项目(1020607820140002)
中央高校基本科研业务费专项资金资助项目(CDJZR12160001)
关键词
数据中心网络
光电混合架构
阵列波导光栅路由器
M/G/1排队系统
光波长路由
data center network
hybrid opto-electronic architecture
arrayed waveguide grating router
M/G/1queuing system
optical wavelength routing
