Chaos Coding for MRI Coil Wireless Communication
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Solution Overview
Problem
Magnetic resonance imaging (MRI) systems face challenges in ensuring reliable and secure wireless communication between local radio frequency coils and the MRI system, with a need for minimal processing delays and high security to prevent errors and unauthorized access.
Innovation Solution
The implementation of chaos coding-based communications, where initial conditions from the MRI system are used to generate dynamic encryption keys for encrypting and decrypting QAM signals, ensuring secure and accurate wireless data transmission by varying encryption methods for each operation, and integrating encryption at the PHY layer for efficient error detection and correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless transmissions are implemented for MRI coils, then communication flexibility and mobility are improved, but security vulnerabilities and data transmission reliability deteriorate
Solution Approach 1:
The patent applies preliminary action by pre-establishing synchronization mechanisms and error correction codes before data transmission begins. The system performs channel estimation and generates correction sequences in advance, allowing reliable wireless transmission without compromising security when the actual transmission occurs.
Solution Approach 2:
The patent uses an intermediary approach by introducing a dedicated authentication and encryption layer between the MRI coil and the central processing system. This intermediary security layer handles data protection separately from the communication protocol, maintaining both wireless flexibility and data reliability through layered security architecture.
2Reliability
If encryption methods are applied to secure wireless data, then security is improved, but processing time and computational complexity increase
Solution Approach 1:
The patent applies periodic action by using time-varying encryption keys that change at regular intervals during the data transmission process. This allows the system to maintain strong security through continuous key rotation while optimizing processing time by synchronizing encryption operations with the transmission timing, avoiding unnecessary computational delays.
Solution Approach 2:
The patent utilizes parameter changes by dynamically adjusting encryption parameters based on channel conditions and transmission requirements. The system modifies encryption strength and key generation rates according to real-time signal quality, achieving optimal balance between security and processing speed without fixed computational overhead.
3Reliability
If error detection and correction are implemented, then data reliability is improved, but signal processing complexity and latency increase
Solution Approach 1:
The patent applies segmentation by dividing the error correction process into discrete, manageable modules that operate independently. The system segments error detection and correction functions into separate processing stages, allowing each module to be optimized for specific tasks while reducing overall processing complexity and enabling parallel execution.
Solution Approach 2:
The patent uses partial action by implementing error correction only for critical data portions rather than all transmitted data. The system applies selective error correction to essential MRI signals while using simpler error detection for less critical metadata, reducing processing complexity while maintaining adequate reliability for the most important data.
4Adaptability or versatility
If wireless communication is used instead of wired connection, then system flexibility and portability are improved, but signal processing power and computational resources increase
Solution Approach 1:
The patent applies continuity of useful action by maintaining constant, optimized signal processing performance throughout the wireless transmission process. The system continuously adjusts processing parameters to match transmission conditions, ensuring consistent energy efficiency without the need for intensive computational resources during transmission interruptions or connection establishment.
Data Source
AI summary
A method for communicating magnetic resonance imaging (MRI) information wirelessly includes detecting an MRI system emission sequence, and identifying at least one parameter of the sequence. The at least one parameter identified is cross-correlated. A first initial condition for a first chaotic coded sequence and a second initial condition for a second chaotic coded sequence are determined based on the at least one parameter. The method further includes obtaining, from a modulation symbol mapped to MRI information generated at a local coil responsive to the sequence, a real component of the symbol and an imaginary component of the symbol. The real component of the symbol is encrypted based on the first initial condition, and the imaginary component of the symbol is encrypted based on the second initial condition. The encrypted real component and imaginary component of the symbol are wirelessly transmitted.