计算机科学与探索Issue(10)：1195-1205,11.DOI:10.3778/j.issn.1673-9418.1407065
基于AWGR的光电混合数据中心网络架构设计
AWGR-Based Hybrid Opto-Electrical Data Center Network Architecture
摘要
Abstract
With the rapid development of cloud computing and the constant increase of the number of servers, data center network (DCN) faces great challenges, such as scalability, cost, power consumption, bandwidth and so on. This paper proposes an arrayed waveguide grating router (AWGR) based hybrid opto-electrical DCN architecture. The AWGR is utilized to provide optical wavelength routing for elephant traffic and the electrical packet switch is used for mice traffic switching. The AWGR is a passive optical device and can potentially increase network reliability, reduce network power consumption and configuration delay compared with optical circuit switches. This paper also proposes three optical source plans for the network architecture:plan one only contains fixed laser diodes (FLDs) at edge switches, plan two contains hybrid fixed and tunable LDs, and plan three only contains tunable LDs (TLDs). This paper performs both numerical analysis of network cost and power consumption and theoretical analysis of net-work performance. Numerical results show that as the number of servers increases, the cost and power consumption of three plans all increase. Among them, the cost and power consumption of plan three increase much faster than theother two. Network performance simulation results show that the network throughput and wavelength request blocking probability of plan two are approaching to those of plan three, and they are much better than plan one. In a word, plan two has a balanced performance and cost tradeoff.关键词
数据中心网络(DCN)/光电混合架构/阵列波导光栅路由器(AWGR)/光波长路由/电分组交换Key words
data center network (DCN)/hybrid opto-electrical architecture/arrayed waveguide grating router (AWGR)/optical wavelength routing/electrical packet switching分类
信息技术与安全科学引用本文复制引用
蔡岳平,晏尧,周丽,刘军..基于AWGR的光电混合数据中心网络架构设计[J].计算机科学与探索,2014,(10):1195-1205,11.基金项目
The National Natural Science Foundation of China under Grant No.61301119(国家自然科学基金) （国家自然科学基金）
the Specialized Research Fund for the Doctoral Program of Higher Education of China under Grant No.20120191120025(高等学校博士学科点专项科研基金) （高等学校博士学科点专项科研基金）
the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry of China under Grant No.1020607820140002(教育部留学回国人员科研启动基金) （教育部留学回国人员科研启动基金）
the Fundamental Research Funds for the Central Universities of China under Grant No. CDJZR12160001(中央高校基本科研业务费专项资金) （中央高校基本科研业务费专项资金）
