Wireless Random Signal Generation for Low-Complexity Devices
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Solution Overview
Problem
Low-complexity and low-energy devices face challenges in generating high-quality pseudo-random numbers due to their strict hardware limitations, especially in environments with low entropy communication channels.
Innovation Solution
A transmission system that wirelessly transmits a randomly manipulated signal to user devices, enabling them to generate random numbers through measurements. The system includes a random number generation controller that adapts signal manipulation based on channel conditions and user device feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If low-complexity and low-energy devices use channel information for random number generation, then device complexity and energy consumption are reduced, but the quality of generated random numbers deteriorates due to low entropy in static communication channels
Solution Approach 1:
The transmission system acts as an intermediary that generates high-entropy random signals and transmits them to user devices. This mediator enables low-complexity devices to obtain quality random numbers without requiring complex local random number generation capabilities, thus resolving the contradiction between device simplicity and random number quality
Solution Approach 2:
The system changes the entropy parameter of the communication channel by introducing random signal manipulation. The transmission system modulates channel parameters (phase, amplitude, frequency) with high-entropy random sequences, transforming the low-entropy static channel into a high-entropy dynamic channel that provides sufficient randomness for secure number generation
2Reliability
If transmission system randomly manipulates the signal, then random number quality is improved, but signal integrity for data transmission may deteriorate
Solution Approach 1:
The transmission system segments the signal into dedicated random signal components and data components. By separating these functions into different signal segments or time slots, the system can apply random manipulation to generate high-entropy numbers while preserving data integrity in other segments, thus resolving the contradiction between randomness and signal integrity
Solution Approach 2:
The system uses dynamic signal manipulation where randomization is applied selectively and adaptively. The random signal manipulation is activated only when needed for random number generation, and the degree of manipulation is adjusted based on channel conditions and data transmission requirements, allowing the system to optimize between randomness quality and signal integrity
Data Source
AI summary
The disclosure pertains to a transmission system for wireless transmission of a randomly manipulated signal over a communication channel to at least one user device. The user device is configured for generating at least one random number from one or more measurements on the randomly manipulated signal. The transmission system may comprise a random number generation controller configured for random signal manipulation to generate the randomly manipulated signal for wireless transmission over the communication channel to enable the user device to generate the random number from measurements on the manipulated signal. The disclosure also relates to a user device for use with the transmission system.