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Wireless sensor network safety positioning method

A wireless sensor and network security technology, applied in the field of wireless communication, can solve problems such as power being easily reflected, and achieve the effects of avoiding wormhole attacks, safe positioning, and efficient positioning

Inactive Publication Date: 2013-09-11
TIANJIN POLYTECHNIC UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its advantages are: high positioning accuracy, convenient application, and low communication overhead. The disadvantage is that it needs more anchor nodes to locate it, and its power is easily affected by reflection, multipath propagation, non-line-of-sight, antenna gain, etc.

Method used

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Embodiment Construction

[0051] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0052] A wireless sensor network security positioning method based on multiple strategies, the entities involved in the method include sensor nodes, anchor nodes and malicious nodes.

[0053] The present invention deeply studies the RSSI positioning algorithm and the DV-Hop positioning algorithm, analyzes the advantages and disadvantages of these two algorithms, and proposes a hybrid positioning algorithm according to the advantages and disadvantages of these two positioning methods, such as Figure 7 shown. The positioning algorithm is mainly divided into three parts: hybrid positioning strategy, anchor node selection method and virtual anchor node. Finally, use Matlab to simulate it, and analyze the positioning accuracy and the number of unlocated nodes. The wireless sensor network is vulnerable to attacks from malicious nodes, and the hybrid adaptive positioning ...

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Abstract

The invention provides a wireless sensor network safety positioning method based on multiple strategies, and belongs to the field of wireless communication. The method includes the steps that (1) under the condition that a malicious node attack does not exist, self-adaptation hybrid positioning of a sensor node and an anchor node is carried out, so position coordinate information of the sensor node is obtained, (2) under the condition that a malicious node launches a wormhole attack, whether the sensor node is under the wormhole attack is detected, if the result is positive, a step (3) is carried out, and if the result is negative, a step (4) is carried out, (3) the sensor node under the wormhole attack is eliminated, wherein the sensor node under the attack of the malicious node is obtained and then eliminated, (4) the self-adaptation hybrid positioning of the sensor node and the anchor node is carried out, so the position coordinate information of the sensor node is obtained. By means of the method, efficient self-adaptation positioning of the sensor node is achieved, and wormhole attacks are effectively avoided.

Description

technical field [0001] The invention belongs to the field of wireless communication, and in particular relates to a safe positioning method for a wireless sensor network. Background technique [0002] The research on Wireless Sensor Networks (WSNs) originated in the US military. After 1987, the US Defense Advanced Research Project Agency (Defense Advanced Research Project Age, DARPA) and the US Natural Science Foundation of China (NSF) established a number of projects. The projects are mainly related to wireless sensor networks, such as SensIT, WINS, Smart Dust, AMPS, SeaWeb, etc. Wireless sensor networks (Wireless Sensor Networks, WSNs) are generally composed of several sensor nodes, and all sensor nodes should be deployed within the area to be monitored. The wireless sensor network is a networked system composed of wireless communication and multi-hop networking. It mainly monitors, perceives and collects various environments or monitoring of object information in real ti...

Claims

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Application Information

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IPC IPC(8): H04W12/00H04W64/00H04W84/18H04W12/122
Inventor 王赜
Owner TIANJIN POLYTECHNIC UNIV
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