Research on location privacy protection method of sensor-cloud base station |
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Authors: | Zhao Guosheng Zhang Jingting Wang Jian |
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Affiliation: | 1. College of Computer Science and Information Engineering, Harbin Normal University, Harbin 150025, China2. School of Computer Science and Technology, Harbin University of Science and Technology, Harbin 150080, China
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Abstract: | In view of the privacy security issues such as location information leakage in the interaction process between the base station and the sensor nodes in the sensor-cloud system, a base station location privacy protection algorithm based on local differential privacy (LDP) is proposed. Firstly, through the local obfuscation algorithm (LOA), the base station can get the data of the real location and the pseudo location by flipping a coin, and then send the data to the fog layer, then the obfuscation location domain set is obtained. Secondly, in order to reconstruct the location distribution of the real location and the pseudo location in the base station, the location domain of the base station is divided into several decentralized sub-regions, and a privacy location reconstruction algorithm ( PLRA) is performed in each sub-region. Finally, the base station correlates the location information of each sub-region, and |
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