At last, the Quality of Service (QoS) problem in WDM networks is studied, and based on different service models, a QoS routing and wavelength assignment algorithm and a proportional QoS wavelength assignment algorithm are presented respectively.

• 最后研究了WDM网络中的服务质量(QoS)问题，并且基于不同的业务模型，分别提出了求解满足QoS约束的路由与波长分配算法和支持比例QoS的波长分配算法。