Demonstration of Virtualizeable and Software-Defined Optical Transceiver
Demonstration of Virtualizeable and Software-Defined Optical Transceiver
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DOI：
10.1109/jlt.2015.2510819
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发表时间：
2016-04
影响因子：
4.7
通讯作者：
Y. Ou;Shuangyi Yan;A. Hammad;B. Guo;S. Peng;R. Nejabati;D. Simeonidou
中科院分区：
文献类型：
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作者：
Y. Ou;Shuangyi Yan;A. Hammad;B. Guo;S. Peng;R. Nejabati;D. Simeonidou
为了服务于未来高性能的基于网络的互联网应用，提出了光网络虚拟化，为每种应用类型提供专用的虚拟光网络（VON）。可虚拟化带宽可变收发器（V-BVT）是支持创建多个VN的关键使能器。在本文中，我们提出了一个可行的V-BVT架构，可以是一个软件定义的光网络的一部分。所提出的V-BVT具有新奇，为客户端或更高级别的网络控制器提供独立的操作、控制和管理能力。此外，提出了一种特定的V-BVT虚拟化算法，以便能够高效地创建共享相同V-BVT物理资源的多个共存但独立的虚拟收发器。虚拟收发器可以基于VON需求、V-BVT资源可用性和光网络状态的要求，向每个VON提供特定的比特率、子载波、调制格式和对应的波特率。我们进一步实现了建议的V-VBT架构上的实验平台与软件定义的网络控制器。还使用扩展的OpenFlow协议执行通过所提出的虚拟化算法的V-BVT资源分配。所提出的和实验证明的V-BVT实现独立的虚拟收发器控制和管理在控制平面，同时保持共存和隔离功能的物理层。
In order to serve the future high-performance network-based Internet applications, optical network virtualization is proposed to offer each application type a dedicated virtual optical network (VON). Virtualizeable bandwidth variable transceiver (V-BVT) is a key enabler in supporting the creation of multiple VONs. In this paper, we present a feasible V-BVT architecture that can be a part of a software-defined optical network. The proposed V-BVT has a novelty to offer independent operation, control, and management abilities to the clients or higher level network controllers. In addition, a specific V-BVT virtualization algorithm is proposed, in order to enable the efficient creation of multiple coexisting, but independent virtual transceivers that share the same V-BVT physical resources. The virtual transceiver can provide specific bit rate, subcarrier, modulation format, and a corresponding baud rate to each VON, based on the requirement of the VON demand, V-BVT resources availability, and optical network status. We further realize the proposed V-VBT architecture on an experimental platform with a software-defined network controller. The V-BVT resource allocation through the proposed virtualization algorithm is also performed using the extended OpenFlow protocol. The proposed and experimentally demonstrated V-BVT achieves independence in virtual transceivers control and management in the control plane, while maintaining the coexisting and isolation features in the physical layer.