Positioning optimization method and device for wireless sensor network, equipment and storage medium

Abstract

Disclosed are a positioning optimization method and device for a wireless sensor network, equipment and a storage medium. The method comprises the following steps of acquiring first receiver noise extracted by a target node when receiving a challenge signal, and second receiver noise extracted by an anchor point when receiving the response signal; determining the target distance between the anchorpoint and the target node; determining the target detection threshold according to the set false alarm probability upper limit; determining the detection result of the range increase attack accordingto the first receiver noise, the second receiver noise and the target detection threshold; if the detection result of the range increase attack is that there is no range increase attack, locating thetarget node according to the target distance; and otherwise, abandoning the target distance.

Description

technical field [0001] The embodiments of the present application relate to the technical field of wireless network communication, for example, to a positioning optimization method, device, device and storage medium for a wireless sensor network. Background technique [0002] Wireless sensor networks are widely used in military and civilian fields, and the location information of sensor nodes is very important for environmental monitoring and target node tracking. Although the location information of the sensor nodes can be provided by the Global Positioning System (GPS), the performance of the GPS is very sensitive to the environment, and the cost is too high for the low-cost sensor nodes. Therefore, in some applications, the system locates the target node through wireless transmission between anchor target nodes, such as based on Received Signal Strength (RSS), Time Of Arrival (ToA), time difference of arrival (based on the target radiation source) and the angle of arriva...

AI Technical Summary

Problems solved by technology

[0003] The security of the wireless system is an important issue, and the security holes caused by the openness in the wireless system, the distributed nature of the sensor localization scheme, and the possible existence of multiple attackers (especially cooperative attackers), make it possible to guarantee The security of positioning schemes is somewhat challenging

The attack defense scheme for the positioning scheme often introduces high communication overhead, and its security depends on the attacker's ability

However, the high communication overhead of the traditional scheme leads to the following limitations. First, the battery life of all sensor nodes needs to be high enough; second, the storage space of each sensor node must be large enough; third, in the case of mobile sensor nodes, timeliness is relatively low Difference

Moreover, if the attacker has enough energy to launch more attacks, even if high communication overhead is introduced, the traditional scheme will fail

In summary, the solutions for ensuring positioning security in wireless sensor networks in related technologies cannot meet the needs of flexibility

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