Research on E-SG mixed polling model based on two kinds of businesses

Based on the E-G level two polling system ^[8], proposed E-SG (Exhaustive - Simplified Gated) polling system model controlled by two kinds of service strategies commonly, which were applied to two different priorities access. The model was abstracted as Markov process and the system state variables were defined as probability density function with N dimension. Then according to the Queuing service mechanism under stable condition, established the state transfer equation of probability generating function, and exactly analyzed the key characteristics of average queue length and average waiting delay, experimental conclusions compared with reference [8] illustrated the new mixed service strategy performed better fairness and stability, and satisfied the needs of network QoS better. The new model not only accomplished the effective control of priorities but also improved the performance of the system.