Improvement of AODV routing protocol based on wireless mesh networks

For wireless mesh networks has no support infrastructure and shows a highly dynamic feature, routing becomes a key problem to be solved. Data packets are transmitted on a path that had least hops in AODV protocol. It couldn´t consider the path stability. When the node of wireless mesh networks moved quickly and the path had short lifetime, the path recovery and routing again is caused. It is a lot of network resource. For network performance, AODV_D that improvement of AODV based on DSDV is provided to improve AODV protocol in the paper. It used structuring a DSDV-based routing table driven technology to select the less hops but high stability path to send data packets. Static node activates AODV_D routing protocol, sports node can choose artificially to activate or not activate this routing mechanism. NS-2 simulation results show that AODV_D routing protocol can improve the delivery rate of data packets, reduce the average end to end delay and packet-loss-rate.