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Method for transmitting sensitive information in wireless sensor network

A wireless sensor and sensitive information technology, applied in wireless communication, network topology, electrical components, etc., can solve the problem of excessive energy consumption of sensor nodes, and achieve the effects of improving the overall survival time, prolonging the service life, and reducing energy consumption

Inactive Publication Date: 2011-09-07
ZHEJIANG NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a sensitive information transmission method to overcome the defect of excessive energy consumption of sensor nodes when transmitting sensitive information in the prior art wireless sensor network

Method used

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  • Method for transmitting sensitive information in wireless sensor network
  • Method for transmitting sensitive information in wireless sensor network
  • Method for transmitting sensitive information in wireless sensor network

Examples

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Embodiment 1

[0036] Embodiment 1. Transmission method of sensitive information in wireless sensor network

[0037] figure 1 It is a schematic diagram of the system architecture of this embodiment, figure 2 It is a schematic flowchart of the transmission method of this embodiment.

[0038] Such as figure 1 As shown, the sensor nodes in the wireless sensor network (the first node N1, the second node N2 and the third node N3 are shown in the figure) are embedded nodes equipped with multiple sensor modules, and the base station is a Well-resourced equipment. Each sensor node communicates with the base station wirelessly. When deploying the network, the base station and each sensor node share a different random key K (the key K configured between the sensor nodes is different from each other and unknown to each other, but the base station owns the key K of each sensor node at the same time. The keys K) configured by the nodes are stored in storage areas that will not be lost when power is...

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Abstract

The invention discloses a method for transmitting sensitive information in a wireless sensor network, and aims to solve the problem that in the prior art, the energy of the node is quickly consumed when the sensitive information is transmitted. The method comprises the following steps that: a sensor node linearly codes the sensitive information through a Gaussian random matrix to obtain a sensitive vector, performs zeroizing sparseness processing on normal information to obtain a sparse vector, fuses the sensitive vector and the sparse vector to obtain fused data, and transmits the fused data to a base station; and the base station observes the fused data to obtain an observed value, re-constructs the sparse vector according to a decoding matrix and the observed value, analyzes the sensitive vector from the fused data according to the re-constructed sparse vector, and decodes the analyzed sensitive vector through the Gaussian random matrix so as to obtain the sensitive information. By the method, coding and hidden communication of the sensitive information by the wireless sensor network can be realized in a mode of low energy consumption; the service life of the sensor node is prolonged; and the whole life time of the whole wireless sensor network is improved.

Description

technical field [0001] The invention relates to a wireless sensor network, in particular to a method for transmitting sensitive information in the wireless sensor network. Background technique [0002] Wireless sensor network (Wireless Sensor Network) is a network composed of a large number of sensor nodes and data collection centers (generally called base stations) distributed in the detection area. The sensor node establishes a data path with the base station through a wireless connection, and sends the measured data to the base station. [0003] Wireless sensor networks are currently used in a wide range of applications, such as military battlefields, environmental monitoring, and temperature and humidity detection in working environments. In many occasions, sensor nodes often collect sensitive information, which requires certain confidentiality. Existing solutions generally use encryption technology for data transmission. [0004] A large number of sensor nodes are oft...

Claims

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Application Information

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IPC IPC(8): H04W12/02H04W12/04H04W84/18
Inventor 熊继平黄涛宣利峰
Owner ZHEJIANG NORMAL UNIVERSITY
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