Dynamic Data Sequence Puncturing for Wireless Security
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Solution Overview
Problem
Existing wireless communication systems face challenges in maintaining secure communications while balancing signal quality, particularly in fluctuating signal-to-noise ratios (SNR) and varying environmental conditions, such as those encountered in short-range wireless networks used for tasks like vehicle access control.
Innovation Solution
The method involves determining puncturing parameters to puncture a data sequence in a secure frame, which is then transmitted between devices, with authentication based on the location and length of the puncture within the data sequence, allowing for dynamic adjustment of puncturing parameters based on the range and SNR between devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data sequence is punctured to enhance security, then security level is improved, but link performance deteriorates
Solution Approach 1:
The puncturing parameters (location and length) are dynamically adjusted based on the measured SNR and range conditions. When signal quality is good, more aggressive puncturing can be applied for higher security. When signal quality degrades, puncturing is reduced or eliminated to maintain link performance. This dynamic adaptation resolves the contradiction by making security and link performance mutually supportive rather than conflicting.
Solution Approach 2:
The system changes the parameters of the puncturing operation (location, length, density) based on channel conditions. By varying these parameters dynamically, the system can optimize the balance between security enhancement and link performance maintenance, transforming a static security measure into an adaptive one that responds to environmental conditions.
2Device complexity
If fixed authentication method is used, then device complexity is reduced, but adaptability to different environments deteriorates
Solution Approach 1:
Rather than changing the fundamental authentication mechanism, the system changes the parameters of authentication (puncturing location, length, and pattern) based on environmental conditions like SNR and range. This allows a relatively simple authentication framework to adapt to varying security requirements and channel conditions, achieving high versatility without proportionally increasing complexity.
Solution Approach 2:
The authentication system transitions from a static, fixed approach to a dynamic one where puncturing parameters are adjusted in real-time based on measured channel conditions. This dynamic behavior enables the same authentication mechanism to effectively operate across diverse environments and security requirements.
3Productivity
If puncturing parameters are dynamically adjusted based on SNR and range, then security and link performance are optimized, but device complexity increases
Solution Approach 1:
The system implements a feedback loop where SNR and range are continuously measured, and these measurements feed into the puncturing parameter selection. This feedback mechanism enables automatic optimization of security and performance without manual intervention, achieving high authentication efficiency. The complexity is managed by using the feedback to drive pre-defined parameter sets rather than requiring complex real-time calculations.
Solution Approach 2:
The authentication system performs self-configuration by automatically selecting appropriate puncturing parameters based on measured channel conditions. Rather than requiring external configuration or complex decision logic, the system serves itself by adapting to environmental conditions, which improves efficiency while keeping the control mechanism relatively simple.
Data Source
AI summary
Techniques are provided for transmitting a secure frame by a wireless device. For example, the wireless device may determine a location within a data sequence of a secure frame to puncture the data sequence with a puncture. The wireless device may then generate the secure frame that includes the punctured data sequence and transmit the secure frame to a second wireless device. The second wireless device may then authenticate the secure frame based at least in part on the location of the puncture within the punctured data sequence.