Energy-aware for Dh-aodv Routing Protocol in Wireless Mesh Network

Wireless Mesh Networks (WMNs) can be the key technology for the future of wireless networks. However, WMNs implementation still has many issues to be resolved especially on finding the best path to forward information. According to many researches, one of the most important component in WMNs is the routing protocol and how to make it efficient in performing the requirements of WMNs. Directional Hierarchical Ad-hoc On-demand Distance Vector (DHAODV) routing protocol, proposed to enhances Ad-hoc On-demand Distance Vector (AODV) routing protocol for WMNs. DH-AODV is performing well for WMN, but in this routing protocol no mechanism is considered to deal with the energy consumption of the nodes in the network. Therefore, in this paper we propose an Energy-aware DH-AODV (E-DHAODV) routing protocol to select a path toward a gateway based on the energy balance. Furthermore, E-DH-AODV can reduce the number of broadcasting route request (RREQ) packets, by sending these packets toward the gateway considering the nodes with less hop-count only. The simulation results shows that E-DH-AODV can reduce the energy variance consumption by 10%, increase the packet delivery ratio (PDR) by 9%, and reduce the overhead by 5% in comparison with DH-AODV.