Control queue length with non-stationary orders flow

Abstract

According to the results of the analysis of the system of key parameters of network and the specifics of their application for managing the quality of the service of the computer network, it has been established that using the statistical approach one can distinguish between the key parameters of the network. The wireless network has been researched, which gives us ability to build a system management quality of service by policing and shaping of computer traffic. Thus, the problem of the choice of equipment becomes decisive. The technology of analysis, monitoring and diagnostics is a set of diagnostic tools and methods of their use that allow an objective assessment of the quality of the work of hardware and applications in the network and justify recommendations for improving their work. Now consider them in details. When using the key parameters of the telecommunication network's efficiency as a complex system with delayed signalling and control information it is possible to predict its state and solve the problems of quality management of the service in real time. Thus, when using a polling system with feedback on speed of buffer filling to organize queries in a network, stationary queuing can be maintained with non-stationary flow of queries. In order to develop a method for determining the average value of packet service time based on the Markov model of the behaviour of a network of homogeneous nodes, a wireless network consisting of N nodes was investigated. The main purpose of developing a simulation technique is to find the mean time value of the service packet T, measured from the moment either the packet arrives in the empty queue of the given node, or the end of the service of the previous packet from this queue, either obtaining an ACK acknowledgment, or ending the time interval after the last unsuccessful transmission attempt.