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Students' Projects

Design and Deployment of a Transfer Control Protocol over Asymmetric Satellite Networks

Kalayn Rao D


Satellite networks are the most widely deployed networks for audio and video transmissions. Though the initial installation cost is more, the benefit of reaching users spread over very large areas makes it a viable and very effective option for sending information in which some loss is tolerable. Some of the main drawbacks of satellite networks are limited bandwidth availability, large delay involved in transmission and their asymmetric nature. This leads to still higher delay in correcting the losses occurred during transmission making them difficult to use for reliable transmission. But when the need for sending data reliably to multiple users spread across a wide region arises, the long reach and inherent multicast nature of satellite networks make them an interesting option. Our work explores the possibility of using asymmetric networks like satellite networks for reliable data transmission to multiple users. An asymmetric network consists of a comparatively large bandwidth unreliable communication channel coupled with a low bandwidth reliable communication channel. We have to design a Transfer Control Protocol which gives a TCP-like interface to applications for above defined asymmetric networks.

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