Experimental research in high capacity communications for data centers

数据中心大容量通信实验研究

• 批准号: 515539-2017
• 负责人: Rusch, Leslie
• 金额: $ 24.28万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=694826
• 关键词: Experimental; research; capacity; communications; data

In 2013, the amount of data processed yearly in data centers surpassed the Zettabyte (or 1021 bytes, or the trillion Gigabyte) threshold, while the massive progress in social networking, cloud computing and big data applications continues. With a compound annual growth rate of 32% per the CISCO global cloud index, data center traffic is expected to reach 14.1 Zettabytes by the end of 2020 . Traffic that remains within data centers accounts for more than 75% of the overall data center traffic. These trends are pushing research for Petabit per second (Pb/s) rates within future data centers. The Pb/s target will require multiple multiplexing strategies and ad-vanced modulation, all within the tight cost constraints of the data center.Achieving Pb/s transmission rates requires a system that pushes boundaries simultaneously along all multiplexing avenues: advanced modulation formats, spectrally efficient operation, coverage of multiple wavelength bands, and spatial multiplexing in modes and/or multiple cores. To keep costs low, solutions must be compatible with trends to monolithically integrated optical and electrical components. Among the various technologies to implement optical com-ponents, silicon photonics is particularly attractive as it holds the potential for small footprint, low cost, low power consumption and scalability . In addition, the advent of software defined networks and interest in flex-grid architectures place constraints on viable Pb/s system strate-gies. The proposed five-year research project will focus on exploring how results in optical multiplexing can be harnessed with WDM and QAM modulation to achieve Pb/s on a single fiber in a point-to-point or mesh network at short distances (< 5 km). The project will push the state-of-the art in several directions

2013年，数据中心每年处理的数据量超过了zb（或1021字节，或万亿gb）的阈值，而社交网络、云计算和大数据应用的巨大进步仍在继续。思科全球云指数的复合年增长率为32%，预计到2020年底，数据中心流量将达到14.1 zb。数据中心内部的流量占整个数据中心流量的75%以上。这些趋势推动了对未来数据中心每秒Pb/s速率的研究。Pb/s目标将需要多个多路复用策略和高级调制，所有这些都在数据中心的严格成本限制内。要实现Pb/s的传输速率，需要一个系统在所有多路复用途径上同时突破边界：先进的调制格式、频谱效率高的操作、多波段的覆盖以及模式和/或多核的空间多路复用。为了保持低成本，解决方案必须与单片集成光学和电子元件的趋势兼容。在实现光学元件的各种技术中，硅光子学尤其具有吸引力，因为它具有占地面积小、成本低、功耗低和可扩展性的潜力。此外，软件定义网络的出现和对灵活网格架构的兴趣对可行的Pb/s系统策略施加了限制。拟议的为期五年的研究项目将重点探索如何利用光复用的结果与WDM和QAM调制相结合，以在短距离（< 5公里）的点对点或网状网络中的单光纤上实现Pb/s。这个项目将把最先进的技术推向几个方向