In this article, we studied the associated research problems and challenges on routing and wavelength assignment (RWA) in WDM (wavelength division multiplexing) networks. Various RWA approaches are examined and compar...In this article, we studied the associated research problems and challenges on routing and wavelength assignment (RWA) in WDM (wavelength division multiplexing) networks. Various RWA approaches are examined and compared. We proposed a new RWA algorithm based on multi-objective. In this new algorithm, we consider multiple network optimizing objectives to setup a lightpath with maximize profit and shortest path under the limited resources. By comparing and analyzing, the proposed algorithm is much better ...展开更多
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...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。展开更多
文摘In this article, we studied the associated research problems and challenges on routing and wavelength assignment (RWA) in WDM (wavelength division multiplexing) networks. Various RWA approaches are examined and compared. We proposed a new RWA algorithm based on multi-objective. In this new algorithm, we consider multiple network optimizing objectives to setup a lightpath with maximize profit and shortest path under the limited resources. By comparing and analyzing, the proposed algorithm is much better ...
文摘在全光网中,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。
