Abstract: DTN (delay tolerant networks) has the characteristic of communication-connection intermittence. Currently, more and more researchers focus on mobility and show that mobility is important to network connection and coverage in mobile wireless networks. A routing protocol that uses the mobility of nodes for evaluating the possibility of delivery is proposed. The evaluation is based only on the node speed without the requirement of any other information. Simulation results show that the proposed scheme performs better than those in related works.

Key words: delay tolerant networks, routing protocol, message, practical application, delivery rate