WDM网络中低开销的动态1+N专有分段保护策略  

A low-cost dynamical segmented 1+N dedicated protection mechanism in WDM network

作　　者：吴大鹏[1] 代琦[1] 王汝言[1] 何健东[1] 熊余[1] 

机构地区：[1]重庆邮电大学光互联网与无线信息网络研究中心,重庆400065

出　　处：《光电子．激光》2011年第10期1506-1510,共5页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金资助项目(60972096;61001105);重庆市科委重点基金资助项目(CTCS2011BA2041);重庆市教委资助项目(KJ110531);重庆邮电大学基金项目(A2011-14)

摘　　要：针对现有波分复用(WDM)网络保护机制倒换时间长、资源消耗较大的问题,提出了一种低开销的动态1+N专有分段保护(DSDP)策略,能够根据当前网络资源耗费情况动态地确定需要保护的网元,采用线性编码方法,利用单个工作路径对多个工作路径进行专有保护。仿真验证表明,本文策略能极大地降低用于保护的网络资源消耗,同时能有效地利用光网络资源。In order to solve the issues of long switching time and high resource consumption for protection in wavelength division multiplexing （WDM） network, an effective low-cost dynamical segmented 1 ＋ N dedicated protection strategy is introduce＆ According to resource consumption condition, the strategy can dynamically determine the segments for protection. Based on network coding, a single backup path can be established to provide dedicated 1＋ N protection for multiple working paths. Simulations show that the strategy can reduce the wavelength consumption. Moreover, the strategy also can use the network resources effectively.

关 键 词：波分复用(WDM)网络 网络编码 分段保护 资源分配 

分 类 号：TN929.11[电子电信—通信与信息系统]