The development of a routing protocol based on Reverse-AODV by considering an energy threshold in VANET

Many approaches based on the improvement of ad hoc routing protocols are proposed due to the issue of the mobile node in VANET (Vehicular Ad Hoc Networks). Indeed, before a source node transfers data, it sends a request message RREQ to all other neighbor nodes in the network where all nodes participate in transmitting the packet. After the message RREQ (route request) comes to the destination, it is replied to by a message RREP (route reply). If an intermediate nodes' energy went out due to the battery, it drops a data packet RREP message after a new recovery must be started, and it can affect the performance of the protocol. This paper proposed two news protocols E-AODV and RE_AODV, with an energy threshold and a new “minimum residual energy” for VANET. The E-AODV approach improves network performance because of node battery depletion and RE_AODV because of the RREP messages' broadcasting and filtering it by the energy threshold.