全光网中基于信号损伤限制的动态RWA算法  

Dynamic RWA algorithm with signal impairment consideration in all-optical networks

作　　者：项鹏[1] 王荣[1] 

机构地区：[1]解放军理工大学通信工程学院,江苏南京210007

出　　处：《解放军理工大学学报（自然科学版）》2008年第2期103-108,共6页Journal of PLA University of Science and Technology(Natural Science Edition)

基　　金：国家部委基金资助项目(TZ-LDTY-Y-B-2006-004)

摘　　要：在全光网中,信号传输损伤会恶化动态光路连接的阻塞率性能,有必要在研究动态路由与波长分配RWA(routing and wavelength assignment)算法时考虑信号传输损伤的影响。介绍和阐述了全光网中的信号传输损伤及其对动态RWA算法性能的影响;结合已有的信号传输损伤模型提出了一种基于信号损伤限制的动态RWA算法,并对其性能进行了计算机仿真分析。仿真结果表明:该算法能有效地减小信号传输损伤对光网动态连接的阻塞率性能的影响,同时还具有较快的运算速度。In all-optical networks, the blocking performance of dynamic network connection may be notably degraded due to signal impairment effects. So it is essential to develop intelligent RWA algorithms to combat the effects of signal impairment. The signal impairment problem and its effects on dynamic RWA algorithm were discussed, and then a dynamic RWA algorithm with signal impairment consideration was proposed. The performance of the algorithm was analyzed through computer simulation. The results show that the new algorithm can reduce the effects of signal impairment with acceptable running time.

关 键 词：全光网络 信号损伤 路由与波长分配算法 

分 类 号：TN929.11[电子电信—通信与信息系统]