A New Algorithm of Trust Formation in Wireless Sensor Networks

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This paper introduces a new algorithm for calculating trust in Wireless Sensor Networks based on the quality of services characteristics expected to be fulfilled by nodes. Figure 3 shows the algorithm being proposed as a flowchart. The flowchart shows the three main sources for computing trust; the previous experience with the nodes, the recommendations from the surrounding nodes and the dispositional trust in nodes (the amount of risk the node is ready to take in the absence of the previous experience and/or the recommendations). Wireless Sensor Networks as an emerging technology has received a great attention from both, researchers and the industry due to the need of tiny and cheap nodes to be distributed in large scales and in difficult environments. The creation, operation, management and survival of Wireless Sensor Networks as a special type of ad hoc network is dependent upon the cooperative and trusting nature of its nodes.
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