頻譜效率優(yōu)先的任播路由沖突感知的彈性光網(wǎng)絡(luò)資源重配置

劉煥淋; 熊翠連; 陳勇

doi:10.11999/JEIT161093

頻譜效率優(yōu)先的任播路由沖突感知的彈性光網(wǎng)絡(luò)資源重配置

doi: 10.11999/JEIT161093

1.
(重慶郵電大學(xué)光纖通信技術(shù)與網(wǎng)絡(luò)重點實驗室重慶 400065) ②(重慶郵電大學(xué)自動化學(xué)院重慶 400065)

基金項目:

國家自然科學(xué)基金(61275077)，重慶市教委基金(KJ1400421)，重慶市科委基礎(chǔ)與前沿基金(2015jcyjA40024)

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出版歷程
- 收稿日期: 2016-10-17
- 修回日期: 2017-01-25
- 刊出日期: 2017-07-19

Collision-aware Reconfiguration Resource Based on Spectrum Efficiency First for Anycast Routing in Elastic Optical Networks

1.
(Key Laboratory of Optical Communications and Networks, Chongqing University of Posts and Telecommunications, Chongqing 400065, China)
2.
(School of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China)

Funds:

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)

摘要

摘要: 針對混合供電的數(shù)據(jù)中心互聯(lián)彈性光網(wǎng)絡(luò)中，為了降低任播業(yè)務(wù)傳輸?shù)淖枞屎湍芎?，論文提出一種基于頻譜效率優(yōu)先的沖突感知(CSEFR)任播路由資源分配策略。該策略首先計算任播阻塞率優(yōu)化光路，按頻譜效率優(yōu)先準則對光路重配置排序，用首次命中(FF)方式分配頻譜。如果任播的阻塞率優(yōu)化的光路目的節(jié)點是不可再生能源供電數(shù)據(jù)中心，則預(yù)留此阻塞率優(yōu)化光路，并為任播建立一條連接可再生能源供電數(shù)據(jù)中心頻譜效率次優(yōu)的能耗優(yōu)化光路，使用末端命中(LF)頻譜分配方式；若該阻塞率優(yōu)化光路連接的目的節(jié)點是可再生能源數(shù)據(jù)中心，且與其他任播的能耗優(yōu)化光路頻譜分配沖突，將沖突的任播能耗優(yōu)化光路重配置到其預(yù)留的阻塞率優(yōu)化光路傳輸以解決光路的頻譜沖突問題。仿真結(jié)果表明，論文提出的CSEFR策略能在大幅降低網(wǎng)絡(luò)不可再生能耗的同時，實現(xiàn)阻塞率和能耗折中的路由策略，而且對不同數(shù)據(jù)中心配置的網(wǎng)絡(luò)環(huán)境具有普適性。
- 彈性光網(wǎng)絡(luò) /
- 沖突感知 /
- 頻譜效率 /
- 資源重配置 /
- 能耗
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.
- Elastic Optical Networks (EONs) /
- Collision-aware /
- Spectrum efficiency /
- Resource reconfiguration /
- Energy consumption

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參考文獻(20)

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