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Energy saving and cost reduction in multi-granularity green optical networks$1

机译：多粒度绿色光网络的节能和降低成本$ 1

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摘要

With the energy consumption increase and the greenhouse effect becomes more and more serious, the energy saving has become the focus in the whole world. At the same time, as the network traffic largely growing, the size and the cost of network equipments keep increasing so that the network cost reduction is also very important. In recent years, the concept of green Internet was proposed to construct an energy-efficient and cost-optimal green network. In this paper, we firstly present the current studies working on the energy saving and cost reduction in multi-granularity optical network that is the convergence between IP network and optical network to support both the low-speed IP data and the high-speed optical transmission. After analyzing the current studies, in our opinion, the traffic grooming mechanism with optical bypass technology is the feasible solution by binding a lot of low-rate IP data into a few of high-speed lightpaths to reduce a lot of electrical ports consumption in IP routers for saving the energy, the waveband switching mechanism is the feasible solution by binding multiple lightpaths into a few of waveband tunnels to save the optical transmitting ports consumption in Multi-Granularity Optical Cross-Connects (MG-OXCs) for reducing the network costs, and the multi-granularity grooming mechanism is the feasible solution by integrating the traffic grooming with the waveband switching to achieve both the energy saving and cost reduction. Based on our opinion, this paper proposes the challenging issues including the network node model, virtual topology design, certain traffic matrix and uncertain traffic matrix for energy saving and cost reduction in multi-granularity optical network, with possible solutions and preliminary simulation results to guide the future work.
机译：随着能源消耗的增加和温室效应的日益严重，节能已成为全世界关注的焦点。同时，随着网络流量的大量增长，网络设备的规模和成本不断增加，因此降低网络成本也非常重要。近年来，提出了绿色互联网的概念，以构建节能高效且成本最优的绿色网络。在本文中，我们首先介绍目前在多粒度光网络中的节能和降低成本的研究，这是IP网络和光网络之间的融合，以支持低速IP数据和高速光传输。 。通过对当前研究的分析，我们认为采用光旁路技术的流量疏导机制是一种可行的解决方案，它可以将大量低速率IP数据绑定到一些高速光路中，以减少IP中的大量电端口消耗。为节省能源，路由器采用了波段切换机制，将多个光路绑定到几个波段隧道中以节省多粒度光交叉连接（MG-OXC）中的光传输端口消耗，从而降低网络成本，是一种可行的解决方案，通过将流量疏导与波段切换相结合，既节能又降低成本，多粒度疏导机制是可行的解决方案。基于我们的见解，本文提出了具有挑战性的问题，包括网络节点模型，虚拟拓扑设计，某些流量矩阵和不确定流量矩阵，以实现多粒度光网络的节能降耗，并提出可行的解决方案和初步的仿真结果。未来的工作。

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  • 来源
    《Computer networks》 |2011年第3期|p.676-688|共13页
  • 作者

    Xingwei Wang; Weigang Hou; Lei Guo; Jiannong Cao; Dingde Jiang;

  • 作者单位

    College of Information Science and Engineering. Northeastern University. Shenyang 110819, China;

    College of Information Science and Engineering. Northeastern University. Shenyang 110819, China;

    College of Information Science and Engineering. Northeastern University. Shenyang 110819, China,State Key Laboratory of Advanced Optical Communication Systems and Networks, Peking University, Beijing 100871, China,Department of Computing, Hong Kong Polytechnic University. Kowioon, Hong Kong, China;

    Department of Computing, Hong Kong Polytechnic University. Kowioon, Hong Kong, China;

    College of Information Science and Engineering. Northeastern University. Shenyang 110819, China;

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  • 正文语种 eng
  • 中图分类
  • 关键词

    green optical networks; multi-granularity; energy saving; cost reduction; multi-granularity grooming;

    机译：绿色光网络;多粒度节能;降低成本;多粒度修饰;

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