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首页> 外文期刊>Optical engineering >Hybrid services efficient provisioning over the network coding-enabled elastic optical networks
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Hybrid services efficient provisioning over the network coding-enabled elastic optical networks

机译：通过启用了网络编码的弹性光网络在网络上实现混合服务高效配置

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摘要

As a variety of services have emerged, hybrid services have become more common in real optical networks. Although the elastic spectrum resource optimizations over the elastic optical networks (EONs) have been widely investigated, little research has been carried out on the hybrid services of the routing and spectrum allocation (RSA), especially over the network coding-enabled EON. We investigated the RSA for the unicast service and network coding-based multicast service over the network coding-enabled EON with the constraints of time delay and transmission distance. To address this issue, a mathematical model was built to minimize the total spectrum consumption for the hybrid services over the network coding-enabled EON under the constraints of time delay and transmission distance. The model guarantees different routing constraints for different types of services. The immediate nodes over the network coding-enabled EON are assumed to be capable of encoding the flows for different kinds of information. We proposed an efficient heuristic algorithm of the network coding-based adaptive routing and layered graph-based spectrum allocation algorithm (NCAR-LGSA). From the sim-ulation results, NCAR-LGSA shows highly efficient performances in terms of the spectrum resources utilization under different network scenarios compared with the benchmark algorithms.
机译：随着各种服务的出现，混合服务在实际的光网络中变得越来越普遍。尽管已经对弹性光网络（EON）上的弹性频谱资源优化进行了广泛研究，但对路由和频谱分配（RSA）的混合服务（尤其是在启用网络编码的EON上）的研究很少。我们在具有时间延迟和传输距离约束的情况下，在启用了网络编码的EON上研究了用于单播服务和基于网络编码的多播服务的RSA。为了解决这个问题，建立了一个数学模型，以在时间延迟和传输距离的约束下，将启用网络编码的EON上的混合服务的总频谱消耗降至最低。该模型为不同类型的服务保证了不同的路由约束。假定启用网络编码的EON上的直接节点能够对不同类型信息的流进行编码。我们提出了一种基于网络编码的自适应路由和基于分层图的频谱分配算法（NCAR-LGSA）的高效启发式算法。从仿真结果来看，与基准算法相比，NCAR-LGSA在不同网络场景下的频谱资源利用率方面显示出高效的性能。

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  • 来源
    《Optical engineering》 |2017年第3期|036101.1-036101.14|共14页
  • 作者

    Xin Wang; Rentao Gu; Yuefeng Ji; Mohsen Kavehrad;

  • 作者单位

    Beijing University of Posts and Telecommunications, School of Information and Communication Engineering, Beijing, China,The Pennsylvania State University, Department of Electrical Engineering, University Park, Pennsylvania, United States;

    Beijing University of Posts and Telecommunications, School of Information and Communication Engineering, Beijing, China,Beijing University of Technology, Beijing Advanced Innovation Center for Future Internet Technology, Beijing, China;

    Beijing University of Posts and Telecommunications, School of Information and Communication Engineering, Beijing, China,Beijing University of Technology, Beijing Advanced Innovation Center for Future Internet Technology, Beijing, China;

    The Pennsylvania State University, Department of Electrical Engineering, University Park, Pennsylvania, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    hybrid services; network coding; routing; spectrum allocation; elastic optical networks;

    机译：混合服务;网络编码;路由;频谱分配;弹性光网络;

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