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In DTN, a small amount of selfish nodes occupy the storage of specific key nodes with stronger transfer capacity in hot spot region which greatly consumes the limited network storage resource. This causes congestion and reduces the successful delivery ratio of messages from other nodes. This paper adopts pigeonhole principle and power in combinatorics to define node's responsibility range of message...
Due to the limitation of DTN resource and intermittent connection, it's challenging to design a mechanism which achieves high message delivery successful ratio and control congestion to satisfy the demand. In this paper, a novel DTN congestion control routing mechanism, Ant Colony Optimization(ACO) for DTN congestion control algorithm(ADC) is proposed. In the message delivery, this mechanism can actively...
Due to the limited resources and intermittent connectivity of Delay-Tolerant Networks (DTNs), it is a challenging task to design an efficient congestion control method to meet the application requirements. In this paper, a new DTN congestion control method called following routing(FR) is proposed. In the method, when the transit node is about to be congested, current node will follow the route of...
When congestion happens at the node of DTN, the regular approach is to delete the old message of these nodes in order to make memory space for the new arrival message to remove congestion. A new method for the selection of message to delete, congestion control routing algorithm based on Simulated Annealing and regional movement (SARM) are proposed in this paper. This mechanism is under the premise...
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