A Routing Protocol for Delay-tolerant Networks

Epidemic algorithm improves the delivery rate by generating a large number of copies of the message. It is easy to implement and obtain high delivery rate. However, DTN network is usually memory-and-bandwidth-limited. The copy and distribution of message without limitation lead to the decrease in network performance. The proposed ANEpidemic algorithm reduces the invalid replication of message by utilizing position and angle information of relay nodes. Simulation results show that the proposed algorithm has a better performance in delivery rate and end-to-end delay.

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