【摘要】 提出了一种评估各种波分交叉连接(WXC)结构的简单分析方法,定性讨论了几种常用WXC结构在阻塞、模块性、广播发送能力和扩展能力的特性。利用线性方程组建立数学模型,并对几种常见WXC方案做出了定量分析插入损耗、硬件成本和灵活性的比较结果。对比几种实现方案得出,基于解复用/空间光开关矩阵/复用的WXC结构(DSM)具有最小的传输损耗,且其成本和灵活性均表现较好。更多还原

【Abstract】 A simple method is proposed to evaluate diverse wavelength cross-connect(WXC) structures.We make a qualitiative analysis of blocking,modularity,broadcast capability and scalability of several familiar WXCs.Linear equations are used to set up a math model and make a quantitative analysis of insertion loss,hardware cost and flexibility for the WXCs.Compared with several WXC schemes,the switching fabric based on demux/space switches matrix/mux(DSM) is shown to have the least loss.Moreover,a conclusion is drawn that DSM is more cost-effective and flexible.更多还原