The Strategy of Feedback Priority in Network Traffic

Once the transmission error or lost data packets occurred in network flows,the terminal user might bring forward a new service requirement.Different with the traditional FCFS discipline,the strategy of feedback priority was proposed.The queue with this policy was analyzed by constructing a quasi birth-and-death process.Based on the spectral expansion method,the stationary distribution of queue length was obtained.Furthermore,the delay performances of the two queues with different feedback strategies were calculated,indicating that the strategy with feedback priority can improve the quality of service.