Performance Evaluation of Fault Nodes Using Queue Threshold Based on N-Policy Priority Queueing Model

A major issue in Wireless Sensor Networks (WSNs) is the minimum availability of energy and hence reducing the amount of energy consumed is of greater interest. In WSN, large amount of energy is consumed during transmission and failure of nodes in sensor network is common. Here, a novel technique is proposed to reduce the node's energy consumption during data transmission using queue threshold based on N-Policy Priority Queueing Model (PQM) by taking failure of nodes into consideration. A sensor network model is developed analytically to evaluate the performance of the proposed scheme by means of energy consumption and delay by taking node failures into consideration. From the results, it is inferred the average energy consumption savings is about 43% for the optimal threshold value by taking node failures into consideration. Simulations are carried out and the results obtained show that the analytical and simulation results matches thus validating the accuracy of the analytical model.

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