Abstract:
In order to store data in the most suitable location, an adaptive data brokerage method is proposed in wireless sensor networks. First, a grid-based network model is established, and the relationship of location between acquiring node, sink and initial storage node is analyzed, the storage method can switch between the local storage and data-centric storage. The method is based on virtual extended grid and it can balance the total energy consumption. Compared with geographic Hash table (GHT), the simulation results show that the method can obtain better performance in terms of total energy consumption and network lifetime and packet loss rate.