Fuzzy ant colony based routing protocol for delay tolerant network

Abstract

Routing in DTN networks is a difficult task due to the high mobility of nodes, intermittent connections, and the limited capacity of the buffer and the battery of the nodes. In addition, the majority of routing protocols in DTN environment do not take into account the energy level of the nodes as well as the relays that have already received a copy of the message in order to determine if a node can participate or not to forward a message. This paper proposes a new approach called FBADTN routing protocol based on the intelligence of ants colony and fuzzy logic to select the best relay by using the energy level of the relays as well as information on the nodes that have already received a copy of the message. Simulation results show that the performances of the proposed protocol are better than the existing protocols.