The improved routing protocol of Wireless Sensor Network based on AODV

Routing is the main research issue in the development of Wireless Sensor Networks (WSNs). Many routing approaches have been borrowed from Mobile Ad Hoc Networks (MANETs) to achieve routing solutions in WSNs. Here, Ad Hoc On-Demand Distance Vector Routing Protocol (AODV) is chosen and some improvements are made on it, in order to be suitable for the application of our network. First, the clustering algorithm is employed to avoid network congestion and generate a tree-based topology structure that network needs. Then, the gateway-auxiliary algorithm is applied to avoid the cluster heads becoming the bottlenecks. Last, OMNET++ is used to test the proposed protocol. The simulation results demonstrate that it works well in large-scale WSNs.