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arXiv 1405.0822cs.NI
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基于WDM的光网络多径路由和波长分配(RWA)算法

Multi-Path Routing and Wavelength Assignment (RWA) Algorithm for WDM Based Optical Networks

P. Sakthivel, P. Krishna Sankar

摘要:

在光WDM网络中,沿着光线路传输信息是有利的,因为它具有高传输容量、可扩展性、可行性以及高可靠性。但是,大量的信息被携带,在传输过程中的任何问题都可能导致严重的损害所携带的数据。因此,有必要考虑路由以及波长分配问题,然后开发一个组合的解决方案,这两个问题。在本文中,我们提出了一个路由和波长分配算法选择合适的备用路径的数据包传输。两个阶段是根据可用带宽和波长的数量在链路中使用的替代路径,路由和波长选择的建设。在建议的工作中,自适应路由和首次适合波长分配(AR-FFWA)算法被使用。对于每一对源端和目的端,选择粒度最小的路径作为数据传输的主路径,分配足够的波长,并使用ns-2仿真模型评估性能。当我们与现有的系统相比,整体阻塞概率将降低到太低。

英文摘要:

In optical WDM networks, transmission of information along optical lines is advantageous since it has high transmission capacity, scalability, feasibility and also high reliability. But large amount of information is being carried; any problem during transmission can lead to severe damage to the data being carried. Hence it is essential to consider the routing as well as the wavelength assignment problems and then develop a combined solution for both the problems. In this paper, we propose to develop a routing and wavelength assignment algorithm for selecting the suitable alternate path for the data packets transmission. Two stages are based on the available bandwidth and the number of wavelength used in the link as construction of alternate paths, route and wavelength selection. In proposed work, Adaptive Routing and First-Fit Wavelength Assignment (AR-FFWA) algorithm to be used. For each pair of source and destination, the path with the minimum granularity values are selected as the primary path for data transmission, allocating the sufficient wavelength and the performances will be evaluated by using ns-2 simulation models. When we compared to existing system the overall blocking probability will be reduced to too low.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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