Fault-Tolerant Data Aggregation for Reliable Wireless Sensor Networks

Abstract—precise data & information is the lifeblood for the operation of Wireless Sensor Networks (WSNs). Incorrect (faulty data) information may lead to the wrong decision; it decreases the reliability in communication and overall operation of WSN. Fault tolerance is one of the issues in WSNs. Proposed fault-tolerant data aggregation scheme for identifying the faulty data sent by the sensors to the cluster head, where the aggregation is performed. Faulty information or data is discarded before aggregation. It would help to improve the accuracy of data aggregation. Consequently, the transmission overhead reduces, since erroneous data is eliminated. The proposed solution gives better performance by detecting and eliminating faulty data providing nodes