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组播的应用使光交换节点的丢包率和分组竞争概率增加.为解决这个问题,综合考虑节点的结构代价和丢包率性能因素,设计一种反馈共享的有限范围多波长转换器和输出共享的基于逻辑运算的全光网络编码器结合的光组播节点结构,并在光组播调度策略中着重考虑最小化波长转换度的组播冲突问题,提出一种基于改进的最大权重独立集算法的波长分配方法.仿真结果表明,相比现有的光组播节点及算法,该结构能够在低成本代价和低时延的基础上降低丢包率,提升了光组播节点的性能.
In order to solve this problem, considering the structural cost of the node and the performance factor of packet loss rate, we design a finite-range multi-wavelength converter with feedback sharing and output Share optical multicast node structure based on logical ops all optical network encoder, and multicast multicast scheduling strategy focuses on minimizing the wavelength conversion degree of multicast conflict, this paper proposes an improved maximum independent set of weights The simulation results show that the proposed method can reduce the packet loss rate and improve the performance of optical multicast nodes, compared with the existing optical multicast nodes and algorithms, on the basis of low cost and low latency.