Abstract :
The term VSAT stands for very small aperture terminal; a small microwave earth station providing communication via satellite. It is the network services provided through such terminals which are of importance, rather than the terminal themselves. VSAT services developed rapidly in the 1980s in the USA, and have since been taken up throughout the world, although usage in Western Europe has been more limited, partly due to the already well established terrestrial infrastructure and partly due to regulatory constraints. VSAT systems are underpinned by satellite links, using microwave technology, modulation and coding, multiple access schemes, and appropriate link budgets to achieve a certain performance level. The real challenge however lies in integrating this into a complete service marketed to the user, and this calls for a good deal of careful network management. A VSAT network is operated by a service provider, who leases satellite transponder capacity and offers a range of tariffs to the end customer. All current VSAT systems employ geostationary satellites
Keywords :
VSAT networks; encoding; microwave links; modulation; multi-access systems; telecommunication network management; telecommunication services; USA; VSAT network; VSAT services; VSAT systems; Western Europe; coding; geostationary satellites; link budgets; microwave technology; modulation; multiple access schemes; network management; network services; satellite links; satellite transponder capacity; service provider; small microwave earth station; tariffs; very small aperture terminal;
