噪声环境中采用探询机制的局域网性能分析

Performance analysis of LAN using polling mechanism in a noisv environmentin a noisy environment

轮叫探询机制己被应用于实时控制网络。本文根据发布/预定接收型通信模型,针对噪声环境,建立了该机制的令牌传送状态机,探讨了在集簇噪声影响下令牌传送的详细过程,并推导出轮叫探询机制的平均令牌传送时间和平均令牌循环时间,通过它们的解析表达式分析了噪声对网络性能的影响。

Roll-call polling mechanism is considered for real-time control networks. Based on publisher/subscriber communication model, the token passing operation in noisy environment of this mechanism is modeled by a state machine, and the detailed token passing operation under the effects of clustered noise is investigated. The mean token passing time and the mean token rotation time are derived from the detailed token passing operation to evaluate the influence of noises to the performance of real-time control networks.