WSNs source node position privacy protection method based on dynamic tree routing

Abstract

The invention discloses a WSNs source node position privacy protection method based on dynamic tree routing. The method is divided into four stages: a first stage: after a network is initialized, allnodes obtain hops from themselves to sink nodes; in the second stage, an intermediate node, an agent source node and an agent sink node are jointly determined by the randomly generated source node andthe sink node in the network; in the third stage, the network enters a data packet routing stage, and the data packet is routed to the sink node from the source node through the proxy source node, the intermediate node, the proxy sink node and the data packet in sequence; and meanwhile, the transmission of false data packets is doped in the routing process, so that the purpose of interfering thejudgment of attackers is achieved. According to the invention, the routing of the data packet from the source node to the sink node has randomness, and the false data packet is doped into the non-hotspot area, so that the service life of the network is prolonged and the relatively small time delay is ensured while 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, in particular to a WSNs source node location privacy protection method based on dynamic tree routing. Background technique [0002] In wireless sensor networks (WSNs), wireless sensor nodes are widely used in extremely harsh environments due to their small size, distribution, self-organization, robustness, and application-oriented characteristics, such as: military monitoring, volcano monitoring, forest fire etc. [19] . By monitoring in the monitoring area for a long time and providing real-time data feedback to users, it provides humans with accurate, efficient, and real-time data, which brings great convenience to humans. However, while WSNs provide great advantages to humans, they gradually expose the problem of location privacy. [0003] When protecting endangered animals, WSNs are used to monitor the activities and status of endangered animals. But b...

AI Technical Summary

Problems solved by technology

This technology sends data packets through a closed confusing arc, increasing the randomness of data packet delivery, making it difficult to identify the location of the source node

[0009] 3. 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

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