全光网络中信号损伤限制RWA算法比较  

RWA algorithm comparison with signal impairment consideration in all-optical network

作　　者：徐洋[1] 葛文萍[1] 李艳超[1] 张杰[1] 

机构地区：[1]新疆大学信息科学与工程学院,乌鲁木齐830046

出　　处：《光通信技术》2013年第2期9-11,共3页Optical Communication Technology

摘　　要：构建物理损伤约束模型,考虑多种物理损伤,并将其转化成光信噪比,可方便捕捉光信号质量沿光路下降情况。改进基于分层图RWA算法,使其在具有物理损伤的网络也能获得较低的阻塞率。仿真结果表明,IRWA算法在非理想网络中仍能获得较低的阻塞率。Construction of the model physical-layer impairments in optical networks, taking into account a va- riety of physical-layer impairments, and translate them into the optical signal to noise ratio, this model can easily capture the quality of the optical signal along the optical path. In order to improve the RWA algorithm based on layered graph, considering physical-layer impairments can also obtain lower blocking probability. The simulation results show that the IRWA algorithm in non-ideal network can still get a lower blocking probability.

关 键 词：透明光网络 物理层损伤 波长路由分配 IRWA算法 

分 类 号：TN929.11[电子电信—通信与信息系统]