ABSTRACT
Virtual partitioning is a scheme for sharing capacity between various call
types (or, more generally, for sharing an unbuffered resource between
various service classes). Call admission depends on the state of the
system. Each call type is assigned a nominal capacity, and while it
exceeds this capacity, arrivals of that type are admitted to the system
only if the resulting free capacity in the system will be greater than
or equal to some reservation parameter. The scheme can be thought of
as a dynamic priority or dynamic trunk reservation scheme with those
call types that exceed their nominal capacities having lower priority.
This talk will describe the virtual partioning control, give examples
of its behaviour, and give the limiting dynamics in the heavy
traffic limiting regime, as the capacity and arrival rates increase
together.
This is joint work with Debasis Mitra and Stan Zachary.