|dc.description.abstract||The ever increasing volume of data traffic on telecommunications networks has led
to a fundamental shift in network operator requirements. Moreover, the continuous
evolution of the industry, with developments such as mobile telephony, has created a
need for interoperability and advanced service management.
These changes in network usage have given rise to major infrastructural change:
telecommunication networks are moving from switched circuit networks, designed
to handle telephony service, to multi-service digital technologies. This evolution is
referred as the migration to Next Generation Networks.
The development of a computer-based tool for modelling and planning this migration
is outlined. This may be used to study the main characteristics of the new network
infrastructure. The tool focuses on network dimensioning and quality of service:
Algorithms have been created to study how migration affects capacity requirements
and a network simulator has been developed to study and analyse quality of service.||en