Abstract

Security has been always a major concern in wireless network irrespective of evolving safety protocols, which motivates various researchers to explore an effective security solution. Existing encryption-based solution offers security but at the cost of resources which are sometime highly limited in communication devices. Therefore, this paper discusses about trust evaluation that is one of the critical operations for ascertaining the degree of security strength offered by the sensor nodes in Wireless Sensor Network (WSN). Existing research work has been carried out to find a strong connection between the resource efficiency and the critical security approaches; however, these approaches are not proven for lightweight energy efficient security scheme. Therefore, the proposed system developed using analytical approach offers a secured communication scheme that evaluates the comprehensive trust value for the target relay node followed by reputation value from the neighboring node in order to perform an effective selection of legitimate relay node. The authentication process has been carried out using progressive key-generation process while the resource efficiency is maintained by developing multi-dimensional trust computation. The essential contribution of the proposed model is to offer an effective balance between resource efficiency and trust-reputation based security strengthening features. The outcome shows that proposed model offers 75% of retention of energy-efficient nodes with more predictable energy dissipation trend. It also offers 82% of reduction of energy fluctuation during the entire operation which is again found to be 35% faster than existing approaches. The simulated outcome of study exhibits that proposed system offers better data transmission performance with significant energy efficiency in comparison to existing scheme.

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