光突发交换结点中一种新的波长转换器共享方式

提出了一种新的光突发交换网络中交换结点波长转换器共享方式，称为冲突部分转换、在这种方式中波长转换器仅被用于转换发生冲突的突发数据包部分，从而降低波长转换器的占用时间，提高其利用率、对该方式和原有基于完整突发转换的方式在不同共享结构和不同业务强度下进行了对比．仿真表明，无论采用每链路共享结构还是每结点共享结构，这种新型的波长转换器共享方式均优于传统的基于完整突发转换的共享方式，可以更多地节省波长转换器的数量．

A new scheme for sharing wavelength converters in optical burst switching nodes

A new Wavelength Converters (WCs) sharing scheme for Optical Burst Switching nodes is proposed, which is called Convert-Only-the-Collided-Part(COCP). According to this scheme only the collided part of a burst is converted to another wavelength, so that the utility of WCs can be improved by reducing the time of occupation. Simulations are made to compare the COCP with available Convert-the-Whole-Burst(CWB) schemes in different sharing architectures carrying various service loads. Results show that the burst loss performance of the COCP scheme is better than that of conventional WC sharing schemes based on CWB, in both Share-per-Link(SPL) mode and Share-per-Node(SPN) mode, and therefore the number of required WCs can be greatly reduced.