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ADVANTAGES OF VSAT SATELLITE NETWORKS

 

ADVANTAGES OF VSAT SATELLITE NETWORKS:

  1. Access in Remote Locations: A Satellite in the Geosynchronous orbit can cover around 33% of the earth’s surface and can provide connectivity to any region covered by it. This is very useful for remote locations (rural areas, ships and coastal regions, hills, etc) where there is limited or no terrestrial connectivity. Remote locations can be provided health services (telemedicine), educational facilities (distance education), etc. using VSAT.
  2. Internet Access: A VSAT Network can provide Internet access in addition to the point to point WAN links. It’s all set to create a next major wave in the consumer broadband industry with the launch of satellites operating in the Ka band offering very high throughput, especially in the non metro regions. ‘Always ON’ broadband Internet services are possible with VSAT networks.
  3. Rapid deployment: Once the Satellite is put in to its orbit, the deployment at the customer premises can be done (usually in hours) if the equipment is available, with minimum training. And the deployment can be done in any region, irrespective of where it is located.
  4. VPN: Satellites support encryption of all data transmitted between two sites or multiple sites, which make the creation of Virtual Private Networks (VPN) possible. Thus VSAT networks could find more acceptance in the corporate and Government/ Defence connectivity requirements.
  5. Quality of Service (QoS): VSAT Networks support QoS and Layer 2 prioritization policies to be applied across the WAN link which enables real time applications to be deployed across the network.
  6. Mobile Access: This makes TV broadcasters make broadcasts from anywhere — even when they are on the move. Another possible application could be mobile Internet access, while on the move.
  7. Scalable: VSAT networks can be easily and cost effectively be scaled to accommodate multiple locations across the globe.
  8. Cost: Though the initial investment (service provider perspective) might be high in terms of the cost of satellites and putting them in the orbit, the running cost (end point terminals and ongoing subscription) is coming down rapidly — That’s why applications like Direct To Home (Cable TV) are broadcasted directly from satellites to homes at a reasonable cost to the subscriber.
  9. Reliable: Satellite Networks are very reliable (having up-times in the magnitude of 99.5% and above) and have been field tested for many years now. Mission critical applications like Bank ATM’s. Navy and Point of Sale appliances use VSAT.                                                    ADVANTAGES OF VSAT SATELLITE NETWORKS
  10. Back-up to Terrestrial Networks: VSAT networks have always found applications in this area — they make a good back up network to the terrestrial networks (Leased Lines, MPLS circuits, Broadband DSL Connectivity, Internet Leased Lines, etc) and there are certain customized plans available for backup exclusively with satellite service providers that charge for only 5% of the monthly capacity when the VSAT connection is used exclusively for backup. VSAT networks are not affected by natural calamities like earthquakes, storms etc.
  11. Single Hop: Satellite transmissions are single hop (mostly) when compared to the multiple hops that the communications based on terrestrial networks need to take to reach to their destination. Some factors like router performance etc, depends on multiple service providers and hence end to end QoS may not be possible with terrestrial public networks.
  12. Bandwidth on Demand: VSAT networks support and are better suited for Bandwidth on Demand services than their terrestrial counterparts.
  13. Cost per connection is independent of the location/ distance: With a VSAT network, the cost per node is independent on the number of nodes and also distance between the various nodes. Compare that with Leased Lines, where the cost increases with more nodes and distance between the two locations.

SCIENCE AND TECHNOLOGY

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