Dispersion Optimised Impairment Constraint Based Routing and Wavelength Assignment Algorithms for All-Optical Networks

2006 International Conference on Transparent Optical Networks Pub Date : 2006-11-20 DOI:10.1109/ICTON.2006.248430

Nadia Zulkifli, C. Okonkwo, Ken Guild

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引用次数: 24

Abstract

Current methods in the area of impairment constraint based routing algorithms (ICBRA) lack the capabilities to support information regarding dispersion management. The inclination towards higher bit-rates and heterogeneous optical networks in the future challenges the popular assumption that chromatic dispersion (CD) is adequately compensated on a per-link basis. Recognising the importance of dispersion management, this paper proposes algorithms which apply metrics that contain dispersion information to both the routing and wavelength assignment sub-problems. To the best of our knowledge, this is the first attempt to include dispersion information within the wavelength assignment sub-problem. The newly proposed algorithm is named dispersion optimised impairment constraint-based RWA (DOIC). The performance is compared to existing routing and wavelength techniques under two scenarios: 40 Gb/s and mixed 10 Gb/s/40 Gb/s services. Two physical impairments under investigation are chromatic dispersion (CD) and optical signal to noise ratio (OSNR)

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基于色散优化损伤约束的全光网络路由和波长分配算法

当前基于损伤约束的路由算法(ICBRA)缺乏支持分散管理信息的能力。在未来，更高比特率和异构光网络的趋势挑战了普遍的假设，即色散(CD)在每链路的基础上得到充分补偿。认识到色散管理的重要性，本文提出了将包含色散信息的度量应用于路由和波长分配子问题的算法。据我们所知，这是第一次尝试在波长分配子问题中包含色散信息。提出了一种基于色散优化损伤约束的RWA (DOIC)算法。在40gb /s和10gb /s/ 40gb /s混合业务两种场景下，与现有的路由和波长技术进行性能比较。目前正在研究的两种物理损伤是色散和光信噪比。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2006 International Conference on Transparent Optical Networks

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