Wireless Node Selective Forwarding for V2V Message Congestion
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Solution Overview
Problem
In wireless communication systems, particularly in low-density vehicle-to-vehicle (V2V) communication scenarios, messages may not reach all intended recipients due to low vehicle density, while in high-density scenarios, message congestion occurs due to repeated transmissions, necessitating a balance between message propagation and reducing transmission clutter.
Innovation Solution
A method where a first wireless communication node determines its neighbor topology and compares it with that of a second node, broadcasting a repackaged message to neighboring nodes only if a discrepancy is found, ensuring messages are forwarded efficiently while minimizing redundant transmissions by assigning unique identities to messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If messages are repeatedly transmitted to ensure coverage in low-density scenarios, then message propagation reliability is improved, but transmission congestion increases in high-density scenarios
Solution Approach 1:
The patent applies local quality by making the transmission behavior of each node adaptive to its local environment. Each wireless communication node determines its own neighbor topology and compares it with the sender's neighbor topology to make a localized forwarding decision. This allows the system to maintain reliable message propagation in low-density areas while automatically reducing redundant transmissions in high-density areas, thus resolving the contradiction between propagation reliability and transmission congestion.
Solution Approach 2:
The patent implements dynamics by making the message forwarding process adaptive and dynamic rather than static. The forwarding decision is dynamically determined based on real-time neighbor topology comparisons. Each node continuously updates its neighbor topology information and uses this dynamic information to decide whether to forward a message, allowing the system to adapt to changing network conditions and vehicle density, thereby balancing propagation reliability with congestion control.
2Area of stationary object
If all nodes forward every received message, then message propagation coverage is maximized, but redundant transmissions and network overhead increase
Solution Approach 1:
The patent applies preliminary action by performing neighbor topology comparison before forwarding messages. Each node pre-determines its neighbor topology and uses this information to make informed forwarding decisions. This preliminary preparation allows the system to avoid redundant transmissions proactively, reducing network overhead while maintaining comprehensive message propagation coverage through intelligent selective forwarding.
Solution Approach 2:
The patent implements feedback by using neighbor topology information to guide message forwarding decisions. Each node provides feedback about its local network structure through its neighbor topology, and this feedback is used by receiving nodes to determine whether forwarding is necessary. This feedback mechanism enables the system to achieve wide message propagation coverage while minimizing redundant transmissions by leveraging local network structure information.
3Measurement precision
If neighbor topology comparison is performed at every node, then selective forwarding accuracy is improved, but processing complexity increases
Solution Approach 1:
The patent applies copying by having nodes exchange and compare neighbor topology information copies rather than performing complex real-time analysis. Each node maintains a copy of its neighbor topology and uses this copied information for comparison with incoming messages' sender topology. This approach achieves high selective forwarding accuracy by leveraging pre-collected topology data, while reducing processing complexity by avoiding complex real-time computations.
Data Source
AI summary
The present disclosure generally relates to a method for selectively forwarding data messages between a plurality of neighboring wireless communication nodes. The present disclosure also relates to a corresponding wireless communication node and to a wireless communication system.