Modelling and performance design of distributed intelligent networks

The evolution of intelligent networks (IN) passes through the distributed networking environments, made possible by the introduction of advance software technologies like CORBA and software agents. The starting point of this paper is the broadband intelligent network which adopts a centralised approach in processing IN service requests. The performance bottlenecks of the IN architecture, centred around the core service processing unit, (i.e. service control point (SCP)) are studied and compared to alternative architectures enabling distribution of intelligence to others than the SCP entities of the IN. We consider a distributed intelligent network architecture based on CORBA and mobile agents technology. We evaluate the performance of this architecture by simulation using a set of detailed models developed to represent the internal operations of the system. Results given provide insight on critical design issues like the selection of physical entities for the migration of software, the service software objects to be transferred as well as the selection of software platforms. Overall the paper provides useful guidelines for the design and implementation of advanced IN architectures