基于时延策略的输入缓存交换网络仲裁与分析

Performance Analysis and Arbitration Algorithm Based on Delay of the Input-Buffered Switch

借助概率母函数的分析方法，对输入缓存方式交换网络的性能进行了理论分析，扩展了前人的分析结果，推出了吞吐率和延时表达式的闭和形式；并对这种网络的输出竞争，提出一种简单的基于时延相关策略的神经网络仲裁算法，解决信元调度问题．仿真结果表明，该仲裁方法改善了网络性能．

The performances of the input-buffered switch fabrics are analyzed by means of the proba- bility generation function method. A simple neural network arbitration algorithm based on delay is proposed in order to schedule the head of line of the switch. The algorithm is fast and very easy to im- plement. The simulation results show that the performances are improved. Therefore, the method is effective and realistic.