LIGHT TRAFFIC BEHAVIOUR OF SOME CLOSED QUEUEING SYSTEMS

                      Igor Kovalenko

   STORM Research Centre of the University of North London

 
A rather general closed queueing system is considered describing
the behaviour of a redundant repairable system. Under some
conditions, an availability of the system is light traffic
equivalent in the sense of S. Asmussen to a simpler "reduced"
system availability. An interesting phenomenon of the asymptotic
independence of the availability of lifetime distributions is
established.