A routing algorithm based on energy constraint

Delay Tolerant Networks (DTNs) are wireless networks in which at any given time instance, the probability of having a complete path from a source to destination is low due to the intermittent connectivity between nodes. Because of the differences between DTNs and traditional networks, the routing strategies about DTNs can not use the traditional routing methods directly. In the paper, we propose a routing algorithm based on energy constraint. Simulation results showed that ERHR has better performance in energy - consumption than other DTN routing algorithms. ERHR is an effective DTN routing algorithm.