The research of dynamic data fusion based-on node behavior trust for WSNs

Wireless sensor networks as sensor technology, microelectronics and wireless communication technology product of the combination, become an active field of computer science research branch, in the military and civilian applications has been widely. As WSNs is limited to low-power requirements of sensor nodes and nodes generally carry an energy which limited and non-replacement, the method which maintains node energy by changing the large number of battery is impossible. While the traditional network is committed to get to the higher quality network services, then the network protocol of WSNs pay more attention to be maintained in the node energy. The cost of communication is higher relative to the local computation. Date fusion, as a core technology, has played an important role in saving energy of the entire network, enhancing the accuracy of the collected data and improving the efficiency of data transfer. In this paper, a data fusion strategy for WSNs was proposed based on trust and cluster. In the Intra-Cluster, we carry out the data fusion by setting up the relay node and using the trust value of the node as weight of data. The selection principle of relay node, the process of choose the relay node and the data fusion based on the trust will be discussed. Finally, the effective and energy consumption of the data fusion algorithm will be analyzed, and through an example to illustrate the specific methods of data fusion and feasibility.