频谱效率优先的任播路由冲突感知的弹性光网络资源重配置

doi:10.11999/JEIT161093

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Abstract

In the data-center interconnected Elastic Optical Network (EON), for reducing blocking probability and energy consumption of anycast request, a Collision-aware based on Spectrum Efficiency First Reconfiguration (CSEFR) strategy is proposed. The light-paths optimized by blocking probability are firstly calculated and allocated spectrum with the First-Fit (FF) mode. And the light-paths are sorted ascend by the light-paths’ spectrum efficiency. If the destination of light-path is a non-renewable energy supply data-center, the light-path is reserved. Then, an energy-saving light-path with suboptimal spectrum efficiency is established to connect a renewable energy supply data-center and allocated spectrum with the Last-Fit (LF) mode. But if the destination of light-path optimized by blocking probability is a renewable energy supply data-center which conflicts with other anycasts’ energy-saving light-paths, those conflicted energy-saving light-paths are reconfigured to their reserved light-paths optimized by blocking probability. The simulations results show that the proposed CSFER strategy can achieve a better tradeoff routing strategy between the blocking probability and energy consumption, and the CSFER strategy is universal for optical networks configured with different data centers.

Key words： Elastic Optical Networks (EONs) Collision-aware Spectrum efficiency Resource reconfiguration Energy consumption

Received: 17 October 2016 Published: 06 April 2017

PACS:

TN929.11

Fund:

The National Natural Science Foundation of China (61275077), The Scientific Research Fund of Chongqing Municipal Commission (KJ1400421), The Basic and Frontier Research Program of Chongqing (2015jcyjA40024)

Corresponding Authors: LIU Huanlin E-mail: liuhl2@sina.com

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	LIU Huanlin
	XIONG Cuilian
	CHEN Yong

Cite this article:

LIU Huanlin,XIONG Cuilian,CHEN Yong. Collision-aware Reconfiguration Resource Based on Spectrum Efficiency First for Anycast Routing in Elastic Optical Networks[J]. JEIT, 2017, 39(7): 1697-1703.

URL:

http://jeit.ie.ac.cn/EN/10.11999/JEIT161093 OR http://jeit.ie.ac.cn/EN/Y2017/V39/I7/1697

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