An interpolation approximation for expected wait in a time-limited pollingsystem

We consider the problem of determining the expected waiting time of arrival s at a particular queueing station in a multi-system configuration with a s ingle server operating under a time-limited polling discipline. At each sta tion, we assume Poisson arrivals and a general service distribution, which does not have to be the same at each station. A simple and accurate interpo lation approximation is developed for this mean and compared with known and simulation results.