Analytical Derivation of Latency in Computer Networks

This paper presents mathematical method of estimating the latency of a corporate computer network through broad classification into propagation, serialization and queue delays. The parameters of interest considered are the sending rates, arrival times, connection bandwidth and the speed of travelling in the medium. Simple and easily determined factors that are essential for computer networks’ quality of service QoS were used to derive the expressions for computing latencies. The expressions were tested with randomly varying packet sizes, variable mean service rates of nodal devices and varying packet arrival rates.