Thermal Noise Modulation for Privacy in Wireless Data
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Solution Overview
Problem
Current methods for collecting and transferring private data in wireless communication networks face challenges in balancing privacy preservation with data accuracy, particularly in dynamic environments like URLLC, where differential privacy techniques may compromise link quality due to added noise, and existing solutions are inefficient or prone to privacy breaches.
Innovation Solution
The use of intrinsic thermal noise in wireless communications as a randomized mechanism for differential privacy, adjusting constellation sizes to achieve targeted privacy levels without deterministic noise, ensuring strong privacy guarantees (ε>0, δ=0) and maintaining efficient power amplifier operation, while also protecting against eavesdroppers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If differential privacy techniques are applied by adding noise to protect private data, then privacy preservation is improved, but data accuracy and link quality deteriorate
Solution Approach 1:
The patent converts the harmful thermal noise, which is normally considered interference to be minimized in wireless communications, into a beneficial randomized mechanism for differential privacy. By intentionally utilizing this intrinsic noise to perturb location-dependent data, the system achieves privacy protection without requiring additional deterministic noise addition that would further degrade data accuracy. This transforms a detrimental factor into a useful privacy-enhancing mechanism.
Solution Approach 2:
The system leverages the naturally occurring thermal noise in the wireless channel to provide the randomization needed for differential privacy. Instead of requiring external noise addition mechanisms, the inherent physical noise of the communication medium itself serves the dual purpose of both signal transmission and privacy protection, making the system more efficient and maintaining better data accuracy.
2Reliability
If deterministic noise is added for privacy protection, then privacy guarantees are achieved, but power amplifier efficiency deteriorates
Solution Approach 1:
The patent converts the harmful thermal noise, which is normally considered interference to be minimized in wireless communications, into a beneficial randomized mechanism for differential privacy. By intentionally utilizing this intrinsic noise to perturb location-dependent data, the system achieves privacy protection without requiring additional deterministic noise addition that would further degrade data accuracy. This transforms a detrimental factor into a useful privacy-enhancing mechanism.
Solution Approach 2:
The system leverages the naturally occurring thermal noise in the wireless channel to provide the randomization needed for differential privacy. Instead of requiring external noise addition mechanisms, the inherent physical noise of the communication medium itself serves the dual purpose of both signal transmission and privacy protection, making the system more efficient and maintaining better data accuracy.
3Reliability
If traditional privacy protection methods are used, then privacy breaches are prevented, but data collection efficiency deteriorates
Solution Approach 1:
The patent converts the harmful thermal noise, which is normally considered interference to be minimized in wireless communications, into a beneficial randomized mechanism for differential privacy. By intentionally utilizing this intrinsic noise to perturb location-dependent data, the system achieves privacy protection without requiring additional deterministic noise addition that would further degrade data accuracy. This transforms a detrimental factor into a useful privacy-enhancing mechanism.
Solution Approach 2:
The system leverages the naturally occurring thermal noise in the wireless channel to provide the randomization needed for differential privacy. Instead of requiring external noise addition mechanisms, the inherent physical noise of the communication medium itself serves the dual purpose of both signal transmission and privacy protection, making the system more efficient and maintaining better data accuracy.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for private data collection and transmission with enhanced accuracy and efficiency, maintaining strong privacy guarantees and optimal power usage, suitable for applications like digital twins and radio heat maps, without the inefficiencies of traditional methods.
Implementation Method 1
The use of intrinsic thermal noise in wireless communications as a randomized mechanism for differential privacy
Data Source
AI summary
An apparatus comprising: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to: receive a signal to interference noise ratio experienced at a network node based on signal transmission from the apparatus; determine a privacy loss target; select a modulation size, based on the signal to interference noise ratio and the privacy loss target; and transmit, to the network node, at least one symbol using the selected modulation size.