多芯弹性光网络的资源分配智能算法.docxVIP

摘 要 PAGE \* ROMAN II 摘 要 随着信息时代通信业务的快速发展，传统的WDM光网络仅能提供固定波长的带宽，已不能完全满足业务需求的多样性。为克服WDM光网络的缺陷，能够有效灵活分配带宽的弹性光网络应用而生。另外目前的超高容量单芯传输系统达到了每纤100 Tbit/s,已快接近单纤容量极限[[] 吴国锋.空分复用中的多芯光纤[J].广西通信技术,2012,(02):30-34.]。基于空分复用的多芯光纤充分利用空间维度来提升单根单模光纤中的传输容量，因此人们近年来提出了基于多芯光纤空分复用 [] 吴国锋.空分复用中的多芯光纤[J].广西通信技术,2012,(02):30-34. 本文中，我们先介绍了弹性光网络概述及其发展，然后介绍了多芯弹性光网络及其对应的路由频谱纤芯分配（RSCA）问题的相关理论和研究现状，接着分别在不考虑纤芯间串扰和考虑纤芯间串扰的情况下，建立了最小化网络阻塞率的多芯弹性光网络资源优化模型，针对该模型利用协同进化算法有哪些信誉好的足球投注网站出RSCA问题的最优解。最后通过在CHNNET网络和NSFNET网络中进行仿真并与启发式算法对比分析，验证了协同进化算法的正确性与有效性。 关键词： 弹性光网络，多芯光纤，路由频谱纤芯分配，协同进化，串扰  ABSTRACT ABSTRACT With the rapid development of communication service in the information age, the traditional WDM optical network can only provide fixed wavelength bandwidth, can not fully meet the diversity of business needs. In order to overcome the shortcomings of WDM optical network, elastic optical network applications, it can effectively and flexibly allocate the bandwidth. In addition, the current ultra-high capacity single-core transmission system to reach 100 Tbit / s per fiber, has been close to the single-fiber capacity limit [1]. The multi-core fiber based on space division multiplexing (BMS) makes full use of the spatial dimension to improve the transmission capacity in single single-mode fiber. Therefore, in recent years, a new type of elastic optical network based on multi-core fiber space division multiplexing is proposed, that is, multi-core elastic optical network, its resource allocation and optimization algorithm has great influence on the utilization rate of network resources, and it is difficult to allocate resources of single core, which makes it become a hotspot in recent years. In this paper, we first introduce the overview and development of the elastic optical network, and then introduce the related theory and research status of the multi-core elastic optical network and its corresponding Routing, spectrum and core allocation(RSCA) problem. Then, Then, a multi-core elastic optical network resource optimi