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中文摘要：
研究了一种有限范围多波长转换器（LMWC）反馈共享连接和全单波长转换器（FRWC）输出共享连接相结合的解决全光组播波长资源竞争的解决方案，并提出有限范围多波长转换器优先的波长变换调度算法，以最大双向匹配最小边长权重方法选择多波长转换器解决冲突光组播波长变换。仿真结果表明：所提的结构与输出共享全多波长转换器（FMWC）节点结构或输出共享FRWC节点结构相比，都能够明显降低光组播节点的分组丢包率（PLP），减少系统需求LM—WC多波长转换器的数目，提高多波长转换器的利用率；LMWC具有不同波长转换范围对光分组冲突解决性能也有影响。
英文摘要：
An optical multieast contention solution scheme, feedback shared limited-range multi-wavelength converters （LMWC） combined with output shared full-range single wavelength converters （FR- WC）,is studied in this paper in wavelength domain. The limited-range multi-wavelength first algorithm is put forward to assign wavelength channel resource for contending optical multtcast packets. The method of maximum bipartite matching with minimum edges weight is brought forward to select the multiwavelength converter to resolve the multicast confliction with wavelength conversion. Compared with the output share-per-node architecture of full-range multi-wavelength converters, or the output share-pernode architecture of full-range single-wavelength converters, our simulation results also show that the proposed scheme reduces the packet loss probability markedly, cuts down the required number of limitedrange multi-wavelength converters and improves the wavelength converter utilization. The further study also indicates that different wavelength conversion ranges have different effects on the proposed scheme performance.
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