Research And Application Of Data Aggregation For Wireless Sensor Networks

Advanced in Microelectronics technology, computer technology and wireless communications, promoted the low power loss multi-purpose sensor's fast development and enabled it to integrate the information acquisition, the data processing and the wireless communication in the small volume and so on many kinds of functions. These miniature sensors through the self-organizing constituted wireless sensor networks. Wireless sensor networks which has attracted the academia and industry high value was efficient, flexible, and many other advantages of high research value and was very broad potential applications in the military, industrial and agricultural production, urban management, health care, environmental monitoring and disaster relief, and many other fields have important applications.Energy,computing power,storage capacity and communication capacity of wireless sensor networks is severely limited. The research indicated that the data transmission has consumed the total energy 70%, so we must use the energy reasonably and lengthen the WSN working life diligently. Data aggregation is one of the most important technologies which can reduce energy consumption of WSN.Aiming at the severe energy and computing resource constraints of wireless sensor networks, based on the analysis and study of data aggregation technology, a data aggregation model for wireless sensor network is proposed in this paper. Constructed data mining algorithm can be integrated in each sensor network node. Data dimension was reduced and data redundancy was eliminated after the raw-data was processed by data mining algorithm, and the communication traffic was decreased and the life of wireless sensor networks was extended. In the Data Communication stage, proposed based on the convergence of regional minimum spanning tree routing protocol (RMCS), the remaining energy, and strong transmission capacity regional node was chosen as the tree root, and responsible for other regional nodes or base stations (sink) data communications in RMCS protocol. RMCS protocol may balance the number of nodes so that the cost of communication expensed the all network in order to balance the energy costs, extend network life-cycle.In this paper, we simulated the data aggregation model. The simulation result had indicated: This data gathering model can the balanced network load, enhance the wireless sensor network well the sensation precision and lengthen the WSN working life.