On Efficient Protection Design for Dynamic Multipath Provisioning in Elastic Optical Networks

被引：0

作者：

Chen, Xiaoliang ^{[1
,2
]}

Zhu, Shilin ^{[1
,2
]}

Chen, Di ^{[1
,2
]}

Hu, Shuguang ^{[1
,2
]}

Li, Chang ^{[1
,2
]}

Zhu, Zuqing ^{[1
,2
]}

机构：

[1] Univ Sci & Technol China, Sch Informat Sci & Technol, Hefei, Peoples R China

[2] UESTC, Minist Educ, Key Lab Opt Fiber Sensing & Commun, Chengdu, Peoples R China

来源：

2015 INTERNATIONAL CONFERENCE ON OPTICAL NETWORK DESIGN AND MODELING (ONDM) | 2015年

关键词：

Protection design; Multipath provisioning; Elastic optical networks (EONs); SPECTRUM ALLOCATION;

D O I：

暂无

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Multipath provisioning (MPP) in elastic optical networks (EONs) can improve the network performance effectively. In this paper, we study the protection schemes for MPP to ensure 100% restoration against single-link failures. We design three algorithms, namely, Instant-ILP, PWCE-MPP and mPWCE-MPP. The first one leverages a simple integer linear programming (ILP) model to design the optimal working-backup structure for each request instantly, while the rest two utilize protected working capacity envelop (PWCE) and spectrum planning to further reduce bandwidth blocking probability (BBP). Moreover, mPWCE-MPP considers the differences among working and backup paths, and ensures that the maximum path-difference (MPD) of a request will not increase dramatically in restoration. Simulation results show that mPWCE-MPP can obtain the best trade-off between BBP and average MPD.

引用

页码：251 / 256

页数：6

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