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In opportunistic networks, messages are delivered based on a store-forward-carry paradigm. Network topology varies with time and dynamism of the links between nodes has a primary effect on the message delay, one of the network performance indicators. To get a precise estimation of the network latency with less complexity, a rigorous framework modeling the information propagation process is developed...
In some specific applicable scenarios, nodes are placed in some geographical areas and limited to move in their own community. We investigate the tradeoff between the delivery delay and the number of transmissions in the above multi-community delay tolerant networks by propagating a data packet in a carefully chosen segment of community. First, three restricted epidemic routings are proposed: the...
Routing is one of the most challenging aspects in Delay Tolerant Networks (DTN) because the end-to-end path does not always occur. In wildlife tracking, habitat monitoring, and other scenarios, the network area may be divided into some geographical communities, the nodes only move in their communities. In this paper, for this specific community-based DTN, we address the delivery delay of the epidemic...
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