Privacy protection oriented continuous data gathering method in sensor network

Abstract

The invention discloses a privacy protection oriented continuous data gathering method in a sensor network. An existing privacy protection oriented data gathering algorithm mainly is focused on snapshot gathering, while the traffic and energy consumption of the snapshot gathering algorithm are unsuitable for being directly applied to continuous data gathering. According to the method, through utilization of time correlation of sensing data, whether nodes transmit current sensing data or not is determined by setting a threshold value, thereby effectively reducing the data traffic. According to the method, for the problem that excessive encryption / decryption calculation results in the fact that the calculation energy consumption of the nodes is relatively high, the privacy of the data is ensured by adding random numbers to the transmitted sensing data, the sensing data is prevented from being encrypted / decrypted among the nodes in the data transmission process, the calculation energy consumption of the nodes is saved, and the network service life is prolonged well. According to the method, under the condition that the privacy of the sensing data is ensured, the traffic and calculation energy consumption are effectively reduced, and the good network expansibility is achieved.

Description

technical field [0001] The invention relates to the technical field of wireless sensor network security, in particular to a privacy protection-oriented continuous data aggregation method in a sensor network. Background technique [0002] Since sensor nodes are very limited in energy, computing and storage capabilities, especially powered by batteries, and are difficult to replace, saving energy consumption and prolonging the service life of the network is an important challenge for wireless sensor network research. Since the energy consumption required to transmit 1 bit data is much higher than the energy consumption of 1 instruction, reducing communication traffic is the key to saving energy consumption. Data aggregation technology is one of the main technologies for wireless sensor networks to reduce communication traffic. At the same time, wireless sensor networks are generally deployed in the wild, and transmit data in a multi-hop and wireless manner, which makes the net...

AI Technical Summary

Problems solved by technology

Obtaining continuous data aggregation results by continuously executing the existing snapshot data aggregation method is too inefficient in terms of data privacy and energy consumption. It is necessary to target the application scenario of continuous data aggregation based on privacy protection in wireless sensor networks. sex studies

[0004] In addition, the existing privacy-preserving data aggregation methods generally use encryption technology to ensure data privacy, which requires a large number of encryption and decryption operations during the data aggregation process, resulting in serious delays and computing energy consumption.

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