WSN source position protection method based on migration included angle

A technology of offset angle and source position, which is applied in the direction of safety devices, digital transmission systems, electrical components, etc., can solve the problem of not considering the impact of loss path and intersection density on safety time, and the unsatisfactory protection effect of source node position, etc. problem, to achieve the effect of avoiding wrapping, improving safety time and improving efficiency

Inactive Publication Date: 2008-10-01
CENT SOUTH UNIV
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Problems solved by technology

[0011] According to the above analysis, applying a completely random walking strategy does not consider the impact of the loss path and intersection density on the safety time, so the actual protection effect on the source node position is not ideal

Method used

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  • WSN source position protection method based on migration included angle
  • WSN source position protection method based on migration included angle
  • WSN source position protection method based on migration included angle

Examples

Experimental program
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Embodiment

[0043] like Figure 5 As shown, a WSN source position protection method based on the offset angle, the WSN includes a source node, a sink node, one or more false sources and multiple intermediate nodes, each node or false source is connected to all Adjacent source nodes, intermediate nodes, sink nodes or false source wireless communication connections, the total number of intermediate nodes is n, and the number is i. It is characterized in that the WSN source position protection method based on the offset angle includes the following steps:

[0044] 1) Obtain the number of hops between each intermediate node, the sink node and the source node through the "interest broadcast" of the sink node and the "local broadcast" of the source node;

[0045] 2) Calculate the offset angle value of each intermediate node according to the number of hops in step 1), the specific calculation process is as follows: the offset angle value of node i is the offset angle value of node i relative to ...

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Abstract

The invention discloses a WSN source position protective method based on offset angle. The method has characteristic that includes steps as follows: 1) obtaining hop count among each middle node and focus node, source node according with interest broadcast of focus node and local broadcast of source node; 2) counting offset angle value of each middle node according with hop count in step 1); 3) each source node and middle node collecting offset angle value of all adjacent middle nodes; 4) each source node and middle node counting forward probability of each adjacent middle node according with offset angle value of adjacent middle node; 5) sending information from source node to focus node through middle node and false source according with forward probability of adjacent middle node. The invention can increase security of source node for sending data.

Description

technical field [0001] The invention relates to a source position protection method of a wireless sensor network (WSN). Background technique [0002] Source location protection is of great significance in wireless sensor networks for monitoring sensitive objects and protecting precious resources. For example, for the monitored rare animals scattered in the natural environment, or the sensor network deployed on the battlefield for military reconnaissance, the location of rare wild animals cannot be obtained by poachers, and the location of soldiers on the battlefield cannot be mastered by the enemy. Once the enemy uses the routing information to determine the physical location of the protected object (that is, the location of the source node) and launches an attack, it will cause extremely serious consequences. [0003] A typical method for source location tracking is: the attacker uses a wireless signal positioning device to track the location of the source node hop by hop....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/26H04L29/08H04W12/122
Inventor 王伟平陈亮王建新
Owner CENT SOUTH UNIV
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