A closed network consists of several multi-servers with n customers.
Service requirements of customers at a multi-server have a common
cdf. State parameters of the network: for each multi-server empirical
measure of the age of customers being serviced and for the queues the
numbers of customers in them, all multiplied by n−1.
Our objective: asymptotics of dynamics as n→∞. The asymptotics
of dynamics of a single multi-server and its queue with an arrival process
as the number of servers n→∞is currently studied by famous scientists
K. Ramanan, W. Whitt et al. Presently there are no universal results for
general distributions of service requirements — the results are either for
continuous or for discrete time ones; the same for the arrival process. We
establish the asymptotics for a network in discrete time, find its equilibrium
and prove convergence as t→∞.
Motivation for studying such models: they represent call/contact centers
and help to construct them effectively.