Identifier Selection in Vehicular P2P Networks
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Solution Overview
Problem
In vehicular networks, frequent collisions and conflicts occur when wireless devices contend for data traffic resources due to high mobility, leading to inefficient use of resources and interference.
Innovation Solution
The method involves adjusting sets of identifiers based on traffic information, such as direction of travel and velocity, to reduce collisions by selecting appropriate identifiers from orthogonal sets, thereby optimizing resource allocation and communication in vehicular peer-to-peer networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If wireless devices use fixed identifier sets for communication, then device complexity is reduced, but resource collisions and conflicts increase due to high mobility
Solution Approach 1:
The patent implements dynamic identifier set selection where wireless devices adjust their identifier sets based on real-time traffic conditions, velocity, and direction of travel. This dynamic adaptation allows the system to respond to changing mobility patterns, reducing resource collisions while maintaining manageable complexity through automated decision-making algorithms.
Solution Approach 2:
The system changes identifier selection parameters based on traffic information, including velocity thresholds and direction categories. By adjusting which identifier sets are used according to these parameters, the patent reduces conflicts in high-mobility scenarios while maintaining efficient resource utilization in stable conditions.
2Reliability
If wireless devices dynamically adjust identifier sets based on traffic information, then resource collision frequency is reduced, but device complexity increases
Solution Approach 1:
The patent enables wireless devices to autonomously select and adjust their own identifier sets based on locally available traffic information and pre-configured criteria. This self-service approach distributes the computational burden across individual devices rather than requiring centralized management, reducing overall system complexity while maintaining collision reduction benefits.
Solution Approach 2:
The system uses feedback from traffic conditions, velocity measurements, and collision detection to continuously optimize identifier set selection. This feedback mechanism allows devices to adapt to changing conditions automatically, reducing the need for complex manual configuration while improving resource utilization efficiency.
3Device complexity
If wireless devices select identifiers randomly, then device complexity is minimized, but resource utilization efficiency deteriorates due to frequent conflicts
Solution Approach 1:
The patent changes the selection parameters from purely random to semi-deterministic based on traffic information categories such as velocity ranges and direction of travel. This approach maintains relatively simple device logic while significantly improving resource utilization by reducing conflicts through informed selection rather than pure randomness.
Data Source
AI summary
A method, a computer program product, and an apparatus for wireless communication are provided. The apparatus adjusts a number of sets of identifiers in a plurality of sets of identifiers based on traffic information. In addition, the apparatus selects an identifier from a set of identifiers of the plurality of sets of identifiers based on the traffic information. Furthermore, the apparatus communicates using resources associated with the selected identifier. The traffic information may include at least one of direction of travel, map information, velocity, whether approaching an intersection, whether departing an intersection, location, a number of vehicles within a particular area, information from other vehicles, type of intersection, whether the intersection includes stop lights or stop signs, at least one computed value based on acquired traffic information, or information from other wireless devices.