Improved Methods in Mitigating Misbehavior Activities in DTN: A Survey

摘要

DTN -Delay Tolerant Network is a special network which is suitable for sparse adhoc network unlike other wireless network it does not demand for end to end node connectivity. This is based on Bundle protocol. Bundle contains user data/information which is transmitted to destination with the help of intermediate nodes through store carry and forward principle. As DTN creates network through intermediate ferry nodes it is prone to security attacks. To offer a broad set of DTN routing protocols the ONE simulator is designed. Numerous routing and forwarding schemes are proposed which differ in their replication strategies. DTN protocol use different kind of approach than TCP/IP for delivering the packet. DTN routing protocols are Epidemic, Prophet, MaxProp, Spray-and- wait and Rapid. Rapid is considered best in terms of delivery probability, overhead ratio.