Traffic grooming and regenerator placement in impairment-aware optical WDM networks
Traffic grooming and regenerator placement in impairment-aware optical WDM networks
复制标题
损伤感知光 WDM 网络中的流量疏导和再生器放置
DOI：
10.1109/ondm.2010.5431576
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
T. Naito
中科院分区：
文献类型：
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作者：
A. Patel;Chengyi Gao;J. Jue;Xi Wang;Qiong Zhang;P. Palacharla;T. Naito
在本文中，我们解决的问题，业务疏导和再生器放置在WDM光网络中的光路跳约束的物理损伤。对于给定的网络拓扑，需要在ROADM节点处有效地放置再生器和电子疏导设备，使得可以以最小的成本支持所有业务需求。我们提出了详细的ROADM节点架构以及相关的成本模型，并提出了一种基于辅助图的启发式算法，用于在网络中联合放置再生器和电子疏导设备。数值结果表明，结合疏导问题与再生器的位置，降低了网络成本显着的情况下，流量疏导和再生器的位置分别处理相比。
In this paper, we address the problem of traffic grooming and regenerator placement in a WDM optical network in which lightpaths are hop-constrained by physical impairments. The efficient placement of regenerators and electronic grooming equipment at ROADM nodes for a given network topology is required such that all traffic demands can be supported with minimum cost. We present a detailed ROADM node architecture together with an associated cost model, and we propose an auxiliary-graph-based heuristic for jointly placing regenerators and electronic grooming equipment in the network. The numerical results show that combining the grooming problem with the placement of regenerators reduces the network cost significantly compared to the cases in which traffic grooming and regenerator placement are handled separately.