论文部分内容阅读
针对可利用的有限信道波长数对WDM星形单跳网容量限制问题,提出了一种有效的解决方案——波长重用的双向WDM星形单跳网.根据该方案,在信道波长数一定的条件下,至少可使网络所支持的节点数——网络容量扩大一倍;在网络节点数不变时,则可大大减少网络节点的排队时延,缓和网络中各通信节点对数据信道波长使用权的竞争矛盾,使网络吞吐量增加1～3倍,有效地改善网络性能.首先论述了该波长重用的双向WDM星形单跳网结构,接着分析了网络的波长重用特性,进而对所要求的光放大器增益和输出功率进行了计算,最后计算了网络的最大节点数和最大信道波长数.
Aiming at the limitation of the limited number of available channels on the capacity of WDM star single hop network, an effective solution to wavelength reuse WDM star single hop network is proposed. According to this scheme, when the number of channels is constant , At least the number of nodes supported by the network can double the network capacity. When the number of nodes in the network is constant, the queuing delay of network nodes can be greatly reduced, and the data channel wavelength The competition contradiction of the right to use, so that the network throughput increased by 1 to 3 times, effectively improve the network performance.Firstly, the wavelength reuse of bidirectional WDM star single hop network structure, and then analyzed the wavelength reuse characteristics of the network, The required optical amplifier gain and output power were calculated, and finally the maximum number of nodes and the maximum number of channel wavelengths were calculated.