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Beacon node credit assessment method in localization in wireless sensor networks

A technology of wireless sensors and beacon nodes, which is applied in the field of network information security, can solve the problem of not being able to filter out beacon nodes from unknown nodes, and achieve the effect of reducing positioning errors

Active Publication Date: 2012-03-14
杜丽红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing evaluation methods cannot help unknown nodes to filter out more reliable beacon nodes and the location information they provide, so as to eliminate malicious beacon nodes and ensure the reliability of positioning results

Method used

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  • Beacon node credit assessment method in localization in wireless sensor networks
  • Beacon node credit assessment method in localization in wireless sensor networks
  • Beacon node credit assessment method in localization in wireless sensor networks

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0029] Such as figure 1 As shown, the present invention provides a method for evaluating the reputation of beacon nodes in wireless sensor network positioning, including the following steps:

[0030] (1) The beacon node sends its own location information to surrounding nodes;

[0031] Beacon Node B i message broadcast out, Indicates Beacon Node B i ID number, Indicates Beacon Node B i two-dimensional coordinates;

[0032] (2) Adjacent beacon nodes evaluate the reputation of the beacon node that sent the information;

[0033] (2.1) Neighboring Beacon Node B j Beacon node B received i After sending the message, according to B i The claimed location information is combined with its own location information to calculate the beacon node B i with B j the distance between

[0034] (2.2) Neighboring Beacon Node B j Estimate the bea...

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Abstract

The invention provides a beacon node credit assessment method in localization in wireless sensor networks, which belongs to the field of network information security. The beacon node credit assessment method includes the following steps: a beacon node sends the positional information of self to nodes around; the neighboring beacon nodes assess the credit of the beacon node sending the information; an unknown node collects the credit assessment values of the beacon nodes neighboring the unknown node to work out a comprehensive assessment value for the neighboring beacon nodes; and the unknown node ranks the beacon nodes neighboring the unknown node according to the credit values to obtain the information of the trustworthy beacon nodes, which is used for localization calculation. The beacon node credit assessment method can effectively assess beacon nodes and the reliability of positional information provided by the beacon nodes to screen out the beacon nodes with high credit values and the information provided by the beacon nodes, and thereby the localization errors of the wireless sensor nodes under an unsecure environment can be reduced. The invention is applicable to a variety of ranging-based localization methods, and does not have special requirement on the hardware configuration of the sensor node.

Description

technical field [0001] The invention belongs to the field of network information security, in particular to a reputation evaluation method for beacon nodes in wireless sensor network positioning. Background technique [0002] Obtaining the location information of nodes is an important basis for providing network topology self-configuration, real-time statistics of network coverage quality and assisting routing and other network functions. With the extensive development of wireless sensor networks, positioning technology has received extensive attention. With the gradual expansion of the application range of wireless networks, the security issues in positioning are also particularly important, especially in the fields of military defense, environmental monitoring, etc., how to ensure the positioning effect of wireless sensor nodes in a network environment with insecure factors has become an important issue. New technical challenges in wireless sensor networks. [0003] In th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/00H04W64/00H04W84/18
Inventor 何泾沙张婷李晓会
Owner 杜丽红
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