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The field of delay tolerant networking is rich with protocols that exploit node mobility to overcome unpredictable or otherwise bad connectivity. The performance of many of these protocols is highly sensitive to the underlying mobility model which determines the nodes' movements, and the characteristics of these mobility models are not often studied or compared. With few exceptions, authors test their ideas using mobility models implemented on simulators written for the specific purpose of testing their protocols. The authors argue that it is better to unify these simulations to one highly capable simulator. They develop a suite of mobility models in OMNeT++ that specifically target delay tolerant networks.
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