Inter-Vehicle Channel Allocation by Traveling Direction
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Solution Overview
Problem
Conventional inter-vehicle communication systems receive driving information from both vehicles on the same side and opposing side of the road, leading to unnecessary data exchange and potential interference, which can hinder safe driving by including useless information.
Innovation Solution
An apparatus and method that determine a vehicle's traveling direction using an instantaneous direction acquisition unit and map data to allocate channels, ensuring that driving information is received only from vehicles on the same road while blocking information from opposing side vehicles, using a channel allocator to manage wireless resources for orthogonal communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the same channel is used for all vehicles regardless of traveling direction, then channel allocation is simple, but driving information from opposing side vehicles is received causing interference and useless data exchange
Solution Approach 1:
The communication channel is segmented based on traveling direction. Vehicles are divided into groups according to their traveling direction (same side vs. opposing side), and different channels are allocated to each group. This segmentation allows useful driving information to be received while blocking harmful interference from opposing side vehicles.
Solution Approach 2:
Different channels are assigned to different traveling directions, creating local quality differentiation. The channel allocation is not uniform but adapted to the local condition of each vehicle's traveling direction, ensuring that each vehicle receives information relevant to its specific direction while filtering out irrelevant information from opposing directions.
2Loss of information
If driving information from all vehicles is received, then complete information is available, but useless information from opposing side vehicles increases data interference and reduces processing efficiency
Solution Approach 1:
The system extracts and separates useful driving information from useless information by identifying vehicles based on their traveling direction. Only information from vehicles traveling on the same side is extracted and processed, while information from opposing side vehicles is excluded. This extraction process maintains information completeness for relevant vehicles while eliminating harmful data interference.
3Object-affected harmful factors
If channel allocation is based on traveling direction, then driving information from opposing side vehicles is blocked, but additional determination and allocation processes are required
Solution Approach 1:
The system performs preliminary determination of traveling direction and pre-allocates channels before actual communication occurs. By determining the vehicle's traveling direction in advance and allocating the appropriate channel beforehand, the system prevents harmful data interference from opposing side vehicles without requiring complex real-time processing during communication.
Data Source
AI summary
An apparatus allocates a channel used for inter-vehicle communications according to a traveling direction. The apparatus includes a traveling direction determiner for determining whether or not a traveling direction of a vehicle is changed; and a channel allocator for allocating the vehicle a previously allocated channel or a new channel based on a determined result of the traveling direction determiner. Further, a method allocates a channel used for inter-vehicle communications according to a traveling direction. The method includes the steps of determining whether or not a traveling direction of a vehicle is changed; and allocating the vehicle a previously allocated channel or a new channel based on a determined result in the above step.