Wireless Sensor Network Source Hiding via False Path Routing

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Solution Overview

Problem

Wireless sensor networks are vulnerable to attacks and privacy leakage due to their characteristics, particularly in applications where location information leakage can lead to significant safety issues, such as in monitoring endangered animals or battlefield environments, as existing security technologies are not directly applicable due to the limitations of wireless sensors.

Innovation Solution

A method is introduced to hide the source of a wireless sensor network by determining a first node with the shortest distance to the source, sending real data packets via the shortest path, and establishing a false path with selected false source nodes to mislead attackers, ensuring the safety of the source and prolonging the safety period.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If shortest path routing is used to transmit data from source to base station, then data transmission efficiency is improved, but source location privacy is compromised and security is reduced

Engineering Contradiction:

Improvedata transmission efficiencyVSAvoidsource location privacy leakage

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces false source nodes as intermediaries between the real source and the base station. These false nodes generate and transmit false data packets that act as mediators to mislead attackers, while the real data packets are transmitted through the shortest path. The false nodes serve as protective intermediaries that obscure the true source location.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent creates copies of data packets - both real data packets from the source and false data packets from false source nodes. These copied packets are transmitted simultaneously through different paths (shortest path for real packets, false paths for fake packets), allowing the system to maintain efficient real data transmission while using packet copies as decoys to protect source privacy.

Inventive Principle:

Principle #26Copying

2Reliability

If false paths are established to mislead attackers, then source safety is improved, but network complexity increases

Engineering Contradiction:

Improvesource safetyVSAvoidnetwork complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the network into distinct transmission paths: shortest paths for real data packets and false paths for false data packets. By dividing the data transmission into separate segments with different routing requirements, the system can maintain source safety through false paths while keeping the real data transmission simple and efficient through shortest paths.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies different routing qualities to different parts of the network traffic. Real data packets receive optimized shortest path routing for efficiency, while false data packets use false paths with intentional routing characteristics designed to mislead attackers. This local differentiation of routing quality allows the system to achieve source protection without compromising overall network performance.

Inventive Principle:

Principle #3Local quality

3Object-affected harmful factors

If multiple data packets (real and false) are transmitted simultaneously, then source privacy protection is improved, but energy consumption increases

Engineering Contradiction:

Improvesource privacy protectionVSAvoidenergy consumption

Core Design Contradiction:

Object-affected harmful factorsVSUse of energy by moving object

Solution Approach 1:

The patent implements partial false path transmission by selectively generating false data packets only when source privacy protection is required, rather than continuously transmitting both real and false packets. The false source nodes generate false packets with a certain probability or under specific conditions, reducing unnecessary energy consumption while maintaining privacy protection effectiveness.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS9338138B2Method for hiding source of wireless sensor network and node

Publication Date: 2016.05.10 TSINGHUA UNIVERSITY

AI summary

A method for hiding a source of a wireless sensor network and a node are provided. The method comprises: determining a first node having a shortest distance from the source; sending a real data packet via a shortest path between the first node and a base station, wherein the real data packet is generated by the first node according to the source; selecting a second node satisfying a preset condition on the shortest path as an initial false source node; establishing a false path with the initial false source node as a terminal node of the false path; and sending a false data packet to the initial false source node via the false path, such that the real data packet is hidden by the false data packet.