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A source node position privacy protection method based on Sink and a grid in a WSN

A privacy protection, source node technology, applied in location-based services, security devices, network topology, etc., can solve the problem of not being able to better protect the privacy of source node location, and achieve the goal of reducing communication overhead and increasing security. Effect

Active Publication Date: 2019-05-28
HANGZHOU DIANZI UNIV
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Problems solved by technology

However, the phantom nodes selected by the existing scheme are mainly concentrated near the source node and are not replaced, so the location privacy of the source node cannot be well protected.

Method used

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  • A source node position privacy protection method based on Sink and a grid in a WSN
  • A source node position privacy protection method based on Sink and a grid in a WSN
  • A source node position privacy protection method based on Sink and a grid in a WSN

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Embodiment Construction

[0067] The present invention will be further described below in conjunction with accompanying drawing.

[0068] Step (1) Network initialization:

[0069] Pre-deploy the nodes in the network. After the pre-deployment is completed, each node can master its own basic information. The basic information of itself includes the identity ID number and the grid number; The hop count of the Sink node Hop Sender,sink , Send a broadcast message with three parameters of the grid number where the node is located;

[0070] After the network initialization is completed, each node obtains the ID number of the neighbor node, the grid number and the minimum hops away from the Sink node, and according to the minimum hops between the node itself and the Sink node and the minimum hops between the neighbor node and the Sink node, the Neighbor nodes are divided into three categories: near-hop neighbor nodes (minimum hops from the node itself to the Sink node > minimum hops from the neighbor node to...

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Abstract

The invention relates to a source node position privacy protection method based on Sink and a grid in a WSN. In the traditional scheme, the defect of overlarge communication overhead caused by determining the phantom node by utilizing the flooding of the source node is overcome. According to the method, firstly, network initialization is carried out, nodes in the network are pre-deployed, then a source node receives a phantom node set, for example, a single phantom node scheme is used with low energy consumption as a first target, for example, a double phantom node scheme is used with high security as a first target, and phantom nodes are selected and routing transmission is carried out according to different schemes. According to the method, a source node selects a phantom node from a phantom node set determined by a Sink node, and then collected information is transmitted to the Sink node in a multi-hop mode through the phantom node. The generated phantom node positions are distributed in the whole network, randomness and diversity are achieved, the security of source node position privacy in the WSN is improved, meanwhile, the node cost is reduced, and the communication overheadis reduced.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor network security, and in particular relates to a source node position privacy protection method based on a sink (sink node) and a grid in a WSN (Wireless Sensor Networks, wireless sensor network). Background technique [0002] Wireless sensor networks have the characteristics of low node cost, low energy consumption, strong networking capabilities, and simple deployment and maintenance. They are widely used in complex environments with limited resources and inaccessible places, such as battlefields or wildlife sanctuaries. For example, a large number of wireless sensor nodes are deployed in wildlife sanctuaries to monitor endangered wild animals (such as pandas, South China tigers and golden monkeys, etc.). In such monitoring applications, the objects of data collection need to be protected. If their locations are known by attackers, it will pose a serious security threat to the monitoring...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/02H04W40/22H04W40/24H04W4/02H04W84/18
Inventor 王秋华詹佳程吕秋云
Owner HANGZHOU DIANZI UNIV
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