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中文摘要：
在波长路由WDM网络中,波长路由和波长分配是RWA算法提高光网络阻塞性能的两个重要阶段和关键技术。文章针对现有的稀疏分光配置约束下的光网络多播RWA算法复杂度高、代价高的问题,提出了一种新的稀疏分光器配置的RWA多播算法。该算法摒弃传统RWA算法在波长路由阶段就考虑稀疏分光约束能力的惯性思维,论文首次提出在波长分配阶段,才通过多播长转换器实现满足稀疏分光约束条件的分光能力传递。仿真结果表明,所提算法在平均代价和所需波长数目方面都获得了较优的性能。
英文摘要：
Wavelength routing and wavelength assignment are the two phases and keytechniques to improve the blocking performance for wavelength routed WDM optical networks. Due to high complexity and high cost of the existing multicast RWA algorithm in WDM networks with sparse-splitting constraints, a new RWA algorithm was proposed. The algorithm discard the inertia thought of traditional RWA algorithm that the sparse-split.ting constraints are considered in the RWA phase of wavelength routing and the multi-wavelength conversion is proposed to realize the constraint satisfaction sparse-splitting transmission only in RWA wavelength assignment phase. The simulation results show that the proposed algorithm obtains good performance, especially in average network cost and link numbers.
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