基于波长共享机制的机载WDM网络波长分配算法  

Wavelength Assignment for Avionic WDM Optical Subnet Based on Sharingwavelength Scheme

作　　者：李瑞欣[1] 赵海燕[1] 朱蒙[1] 于龙强 Li Ruixin;Zhao Haiyan;Zhu Meng;Yu Longqiang(School of Information and Navigation,AFEU,Xi'an 710077,China)

机构地区：[1]空军工程大学信息与导航学院

出　　处：《航空科学技术》2019年第7期62-67,共6页Aeronautical Science & Technology

基　　金：陕西省自然科学基金(2016JM6073);国家自然科学基金(91638101)~~

摘　　要：针对航电网络节点间信息量的不同,依据子网划分理论,提出了一种光电混合式航电波分复用(WDM)网络结构,并在此基础上提出了一种基于邻接会话和行(列)会话共享波长的机载WDM子网路由波长分配算法。定义了邻接会话和行(列)会话,分析了会话间共享波长的原理,推导了波长需求数目。仿真结果证明,正常情况下该算法波长需求数目与Token算法一样,最好情况下相比Token本算法可减少┌N/6┐的波长耗费(N为网络节点数),达到了有效利用波长的目的,且简单易实现,是一种值得参考的机载WDM网络RWA设计方法。Aiming to different traffic of avionic network node,an optical-electric mix structure is proposed based on subnet division theory,and then an avionic WDM subnet Routing and Wavelength Assignment(RWA)algorithm is brought out based on adjacent session and row(column)session sharing wavelength.The algorithm gives the concept of adjacent session and row(column)session,analyses the principle of sharing wavelength,and derives the wavelength number formula in different conditions.Simulation results show the wavelength requirement is same with Token algorithm in most conditions,but in best condition the proposed algorithm can reduce┌N/6┐(N is the subnet node number)wavelength number comparing with Token algorithm,achieving the purpose of efficient usage of wavelength.Besides this,the proposed RWA is easily realized.So the RWA is a worthy avionic WDM network RWA method reference.

关 键 词：机载WDM网络 波长分配 子网 邻接会话 行(列)会话 共享波长 

分 类 号：V243.1[航空宇航科学与技术—飞行器设计]