Cooperative Threat Detection in C-V2X Wireless Systems
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Solution Overview
Problem
Current communication systems, particularly in C-V2X, face challenges in detecting and mitigating threats that interfere with the transmission of basic safety messages, such as jamming or misbehaving entities, which can obstruct wireless resources used in cooperative and automated driving decisions, leading to potential safety hazards.
Innovation Solution
A method where a first wireless device detects threat entities interfering with BSM transmissions and shares information about these threats with other devices beyond the threat zone, allowing them to virtually sense the threat and initiate mitigation actions, such as selecting alternative transmission resources to avoid interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a device transmits BSM messages using available wireless resources, then communication efficiency is improved, but vulnerability to interference from threat entities increases
Solution Approach 1:
The system performs preliminary sensing and threat detection before transmitting BSM messages. Devices monitor the wireless environment in advance to identify potential interferers (jammers, misbehaving entities) and proactively select alternative resources or adjust transmission parameters before interference occurs, thereby maintaining both communication efficiency and reliability
Solution Approach 2:
The system implements continuous feedback mechanisms where devices monitor transmission quality and detect interference in real-time. When threat entities are detected, the system feeds back this information to adjusting transmission strategies (resource selection, power control, modulation schemes) to maintain reliable communication despite the presence of interferers
2Reliability
If devices sense the environment to detect threat entities, then transmission reliability is improved, but detection precision deteriorates due to hidden nodes beyond sensing range
Solution Approach 1:
The system merges sensing results from multiple wireless devices to create a comprehensive view of the environment. By combining observations from multiple nodes, the system can detect threat entities that individual devices cannot sense alone, thereby improving detection precision without sacrificing transmission reliability
Solution Approach 2:
The system uses message passing as an intermediary mechanism where devices share sensed information about threat entities. This allows devices to infer the presence of hidden nodes beyond their direct sensing range by receiving reports from other devices, effectively extending detection capability while maintaining reliable transmission
3Reliability
If devices share threat information with other wireless devices, then overall system reliability is improved, but communication overhead increases
Solution Approach 1:
The system extracts only the essential threat information (presence, location, type of interferer) and shares this condensed data with other devices. By transmitting only critical parameters rather than complete sensing data, the system maintains high system reliability while minimizing communication overhead and information loss
Data Source
AI summary
Method and apparatus for cooperative early threat detection and avoidance in C-V2X. In one aspect, the apparatus detects a threat entity within a threat zone based on data signals received from the threat entity, wherein the threat entity obstructs wireless spectrum or resources utilized in cooperative or automated driving decisions. The apparatus transmits, to at least one second wireless device, a message indicating the threat entity within the threat zone.