| Zhao Xianlong (赵羡龙),Xu Xianze,Bai Huifeng.[J].高技术通讯(英文),2017,23(3):260~265 |
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| Physical layer impairments tolerance based lightpath provision in software defined optical network |
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| DOI：10.3772/j.issn.1006-6748.2017.03.005 |
| 中文关键词: |
| 英文关键词: OpenFlow, physical layer impairments (PLIs), tolerance model, lightpath provision |
| 基金项目: |
| Author Name | Affiliation | | Zhao Xianlong (赵羡龙) | | | Xu Xianze | | | Bai Huifeng | |
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| 中文摘要: |
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| 英文摘要: |
| As all-optical networks grow with ever increasing ultra-high speed, the communication quality suffers seriously from physical layer impairments (PLIs). The same problem still exists in software defined optical network (SDON) controlled by OpenFlow. Aimed to solve this problem, a PLIs tolerance based lightpath provision scheme is proposed for OpenFlow controlled optical networks. This proposed approach not only takes the OSNR model to represent those linear PLIs factors, but also introduces those nonlinear factors into the OSNR model. Thus, the proposed scheme is able to cover most PLIs factors of each optical link and conduct optical lightpath provison with better communication quality. Moreover, PLIs tolerance model is also set up and considered in this work with some necessary extension to OpenFlow protocols to achieve better compatibility between physical layer impairments factors and various services connections. Simulation results show that the proposed scheme is able to get better performance in terms of packet loss rate and connection setup time. |
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