Lane Node Tree Configuration for V2V Communication Load Reduction
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Solution Overview
Problem
Current vehicle-to-vehicle (V2V) communication systems face excessive communication loads due to multi-hop technology, particularly when configuring node trees for linear and curved routes, which affects the efficiency of applications like forward collision warnings and adaptive cruise control.
Innovation Solution
A system and method for configuring a lane node tree that selects appropriate driving vehicle detection modes based on vehicle information, determining the presence of neighbor vehicles in specific lanes, and requesting node connections to optimize communication paths, thereby reducing data communication loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multi-hop technology is used to enable communication between vehicles outside radio coverage, then communication coverage is extended, but communication load increases excessively
Solution Approach 1:
The patent segments the communication area into multiple lanes (first lane, second lane, third lane, fourth lane) and configures separate node trees for each lane. This segmentation allows the system to manage communication loads independently per lane rather than treating the entire coverage area as a single unit, thereby reducing overall communication load while maintaining extended coverage through selective multi-hop relay configuration.
2Area of stationary object
If node trees are configured for all vehicles in coverage area, then communication coverage is maximized, but system complexity increases
Solution Approach 1:
The patent applies local quality by configuring node trees with lane-specific attributes rather than uniform configuration for all vehicles. Each lane's node tree is optimized for its specific geometric characteristics (linear or curved), and relay vehicle selection is performed independently for each lane. This localized approach reduces overall system complexity by breaking down the global configuration problem into manageable lane-specific subproblems.
Solution Approach 2:
The patent introduces a lane dimension to organize the node tree configuration space. Instead of managing a single complex node tree for all vehicles, the system creates multiple node trees organized by lanes (first lane node tree, second lane node tree, etc.). This dimensional organization simplifies the configuration process by providing a structured framework for managing relay vehicles and communication paths.
3Ease of operation
If relay vehicles are selected without lane-specific configuration, then configuration process is simplified, but communication efficiency decreases
Solution Approach 1:
The patent implements dynamic relay vehicle selection within each lane based on lane attributes and vehicle positions. The controller dynamically determines which vehicles serve as relay vehicles in each lane, adjusting the node tree configuration according to real-time conditions such as lane curvature and vehicle distribution. This dynamic approach maintains configuration ease through automated lane-based rules while improving communication efficiency by optimizing relay selection for each specific lane context.
Data Source
AI summary
A system for configuring a lane node tree includes: a host vehicle; and a controller disposed in the host vehicle and including a memory configured to store program instructions and a processor configured to execute the stored program instructions, which when executed cause the controller to: select a driving vehicle detection mode among a plurality of driving vehicle detection modes; select a lane of a road according to the selected driving vehicle detection mode; determine whether a neighbor vehicle neighboring the host vehicle is present in the selected lane; and request a node connection from a neighbor vehicle present in the selected lane when the neighbor vehicle is determined to be present in the selected lane.