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Wireless Sensor Networks have potential of significantly enhancing the people ability to monitor and interact with their physical environment. Realizing a fault tolerant operation is critical to the success of WSNs. The integrity of data has tremendous effects on performance of any data acquisition system. Noise and other disturbances can often degrade the information or data acquired from these systems. Devising a fault-tolerant mechanism in wireless sensor networks is very important due to the construction and deployment characteristics of these low powered sensing devices. Moreover, due to the low computation and communication capabilities of the sensor nodes, the fault-tolerant mechanism should have a very low computation overhead.
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