A privacy protection method of wsns source node location based on dynamic loop routing

Abstract

The invention discloses a WSNs source node location privacy protection method based on dynamic loop routing. The method is divided into three stages: at the first stage, enabling all nodes to know thehop count to a sink node after a network performs initialization, and constructing an initial confusion ring; at the second stage, randomly selecting an intermediate node in a semi-circle region decided by the source node and the sink node, wherein the source node transmits a message to an intermediate node; at the third stage, sending the message to the closest loop node on the current confusionloop through the intermediate node, and transmitting the message to the sink node through the shortest path method after passing through random hop count in the loop. Through the protection method, the intermediate node can be far away from the source node as enough as possible, and each routing of the data packet to the sink node from the source node is random; through the use of multiple confusion rings, the utilization efficiency of the energy in the network is improved, and the network life is increased when the location privacy of the source node is protected.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor network communication support, and in particular relates to a WSNs source node position privacy protection method based on a dynamic loop route. Background technique [0002] Wireless sensor networks (WSNs) have been applied in many fields, such as infrastructure monitoring and information collection. Among them, location privacy has become the focus of people's attention. On the one hand, the information it provides brings convenience to people. On the other hand, the leakage of location privacy also brings great risks. The research on location privacy is not only required to bring convenience to people, but also to consider that location privacy is not exploited by criminals. Therefore, in the case of malicious attacks, protecting location information is a key issue for location privacy services. [0003] Although we can deal with the privacy of the source location through encryption, ...

AI Technical Summary

Problems solved by technology

[0007] 2. In 2017, Guangwu et al. proposed a constrained random routing mechanism in "Constrained Random Routing Mechanism for Source Privacy Protection in WSNs", which can continuously change the selection of next-hop routing instead of relatively fixed routing paths , making it difficult for attackers to analyze and trace to the source node

This technology injects false data packets to make the traffic density in the network more uniform and make it difficult for the BS to distinguish

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