An Adaptive Routing Algorithm for Communication Networks using Back Pressure Technique

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Provided by: International Journal of Modern Engineering Research (IJMER)
Topic: Networking
Format: PDF
The basic idea of backpressure techniques is to prioritize transmissions over links that have the highest queue differentials. Backpressure method effectively makes packets flow through the network as though pulled by gravity towards the destination end, which has the smallest queue size of zero. Under high traffic conditions, this method works very well and backpressure is able to fully utilize the available network resources in a highly dynamic fashion. Under low traffic conditions, however, because many other hosts may also have a small or zero queue size, there is inefficiency in terms of an increase in delay, as packets may loop or take a long time to make their way to the destination end.
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