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研究了一种共享有限波长转换器(LRWC)和参量波长转换器(PWC)相结合的解决全光分组波长资源竞争的方案,并提出了PWC优先算法作为光分组交换中的波长竞争解决方案。仿真结果表明:本文结构与共享LRWC节点结构相比,减少了波长转换器的数目,并且能够明显降低光分组交换节点的分组丢包率(PLP),提高波长转换器的利用率。研究还发现,不同波长转换器配置方案对系统性能有影响。
A solution to the competition of all-optical packet wavelength resources by combining a limited-wavelength converter (LRWC) with a parametric wavelength converter (PWC) is proposed. The PWC-first algorithm is proposed as a wavelength contention solution in optical packet switching. The simulation results show that the proposed scheme reduces the number of wavelength converters and reduces the packet loss ratio (PLP) of optical packet switching nodes and improves the utilization of wavelength converters, compared with the shared LRWC nodes. The study also found that different wavelength converter configurations have an impact on system performance.