The STEM newsletter is a quarterly bulletin designed to keep you informed of the latest developments in STEM: interesting applications, the latest features and a series of how-does-it-work articles, together with news of forthcoming events.
In an interactive modelling exercise over four sessions, two teams worked in parallel to create business models from a blank sheet in an accelerated process made possible by STEM's automated logic and consistency.
Another Masters student at CEFRIEL has considered the economic aspects of WiMAX. A previous STEM model for a nationwide mobile access network has been updated and improved with a more accurate path-loss model, more detailed tariffs, and additional network elements.
Lator, a Croatian telecoms consultancy, has used STEM to build a bottom-up business model of an alternative operator using carrier pre-selection (CPS), identifying the key drivers through sensitivity analysis.
Users and their needs must define the technical specifications for networks, and drive the economic selection of the most suitable technology. A Masters student at CEFRIEL has used STEM to model ADSL, Gigabit Ethernet, UMTS, WiFi and WiMax access technologies in collaboration with Alcatel.
Long-term planning of base-load power stations in a national grid should minimise the number of oil and gas (O&G) turbines required for peak consumption. A STEM model forecasts energy demand and the requirements for O&G turbines and calculates end-to-end costs allocated to each type of service and energy user on a per-kWh basis.
STEM's template replication feature facilitates the generation of very large, repetitive model structures. This technical article illustrates the principles of a two-tier bandwidth aggregation model.
A comprehensive new training course is available, written around a demonstration model, The business case for WiMAX vs DSL in rural areas. The 190-page exercise book presents 55 exercises in 15 groups covering all key features of the STEM software and current modelling practices.
Mahindra BT recently helped a mobile operator in Eastern Europe to review the business case for extended GSM coverage and a new TETRA network.
Philip Murtagh of Dasein Ltd has developed a generic business case examining how a small operator might integrate VoIP with existing hosted services.
The Independent Communications Authority of South Africa is offering licences to use GSM spectrum for fixed-wireless access in low-teledensity areas, for tender by April 2003. Forge Ahead BMI-T is providing consulting and support services and Ericsson, as the solution provider, is modelling the business case in STEM.
