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在全光网络中,光信号在全光域内传输,避免了光-电转换带来的延迟,因此,全光网支持高数据率传输并提供巨大的网络容量。WDM(波分多路复用)技术的采用使得高速光传输线路与低速终端处理设备之间能够相互兼容。论文探讨了WDM全光网中的路由及波长分配问题,对各种常用算法进行了详细的分析,并提出了对一种新型的用于WDM网络上的实时组播请求的分布式RWA算法进行改进的意见。
In all-optical networks, optical signals are transmitted in the all-optical domain, avoiding the delay caused by optical-electrical conversion. Therefore, all optical networks support high data rate transmission and provide huge network capacity. The adoption of WDM (Wavelength Division Multiplexing) enables high-speed optical transmission lines and low-speed terminal processing equipment to be compatible with each other. This paper discusses the routing and wavelength assignment problem in WDM all-optical network, analyzes all kinds of commonly used algorithms in detail, and proposes a new distributed RWA algorithm for real-time multicast request in WDM network Improved advice.