Abstract

Objective and Background: The Internet of Things (IoT) devices store a great volume of data. Therefore, with the advancements in technology, some new protection guidelines have to be developed to preserve data privacy and collection. The present study aimed to determine a secure protective framework using the BTD structure in a specified zone, and provide the idea of hiding the sensory data of an operator device to preserve data privacy without losing the data integrity. Methodology: Two simple and enhanced methods were used. The BTD framework and estimated ground truth were used in both modes. The enhanced method allows the users to use a random weight (variance) when combining their sensory data with the estimated ground truth provided by the agent. We ran the BTD framework in the CloudSim (network simulation framework). Each simulation is run for 500 virtual minutes with 12 iterations. The target zone is set to 50×50 meters. The test results were collected on real-world data traces from sensory systems. In addition to the BTD structure, the Voting method has been also used, and to do so, majority voting and CRH truth discovery method (Conflict Resolution on Heterogeneous Data) which does not take any measures to break the security of the sensor during the process is used. Findings: The comparative results show a 0.70-0.71 error level between the BTD and other functions, at least. As long as there is at least one reliable source, the BTD will have an error level of 0. Simulations show that BTD has a worst-case error of 0.05 and a weighted variance of +/- 5%. Based on previous frameworks, the BTD is improved by three requirements of a population identified in the IoT: Preservation of privacy for the device user, data integrity for the data collection group, and low-cost computation on the user device.

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