Spectrum-Efficient and Scalable Elastic Optical Path Network: Architecture, Benefits, and Enabling Technologies
Spectrum-Efficient and Scalable Elastic Optical Path Network: Architecture, Benefits, and Enabling Technologies
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DOI：
10.1109/mcom.2009.5307468
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发表时间：
2009-11-01
影响因子：
11.2
通讯作者：
Matsuoka, Shinji
中科院分区：
文献类型：
--
作者：
Jinno, Masahiko;Takara, Hidehiko;Matsuoka, Shinji
数据业务量的持续增长要求在未来的光网络中为100 Gb/s及以上的链路引入高效且可扩展的传输平台。在这篇文章中，在简要回顾了现有的主要技术选择，我们提出了一种新的，频谱效率高，可扩展的光传输网络架构称为SLICE。SLICE架构以高频谱效率的方式实现子波长、超波长和多速率数据业务适应，从而提供部分带宽服务。弹性光路的动态带宽变化为网络运营商提供了新的商业机会，通过时间相关的带宽共享、节能的网络操作和具有带宽压缩的高度可生存的恢复来提供具有成本效益和高度可用的连接服务。我们还讨论了基于光正交频分复用的灵活速率转发器和带宽可变波长交叉连接作为SLICE概念的使能技术。最后，我们提出的性能评估和技术挑战，出现在这种新的网络架构。
The sustained growth of data traffic volume calls for an introduction of an efficient and scalable transport platform for links of 100 Gb/s and beyond in the future optical network. In this article, after briefly reviewing the existing major technology options, we propose a novel, spectrum-efficient, and scalable optical transport network architecture called SLICE. The SLICE architecture enables sub-wavelength, super-wavelength, and multiple-rate data traffic accommodation in a highly spectrum-efficient manner, thereby providing a fractional bandwidth service. Dynamic bandwidth variation of elastic optical paths provides network operators with new business opportunities offering cost-effective and highly available connectivity services through time-dependent bandwidth sharing, energy-efficient network operation, and highly survivable restoration with bandwidth squeezing. We also discuss an optical orthogonal frequency-division multiplexing-based flexible-rate transponder and a bandwidth-variable wavelength cross-connect as the enabling technologies of SLICE concept. Finally, we present the performance evaluation and technical challenges that arise in this new network architecture.