Optimal Path Routing Protocol for Warning Messages Dissemination for Highway VANET.

Area of Science:

• Vehicular Ad Hoc Networks (VANETs)
• Network Security
• Traffic Safety Systems

Background:

• Effective information dissemination is crucial for vehicular ad hoc networks (VANETs).
• Ensuring reliable, secure, and timely warning message delivery in high-mobility highway environments presents significant challenges.
• Traffic fatalities and transmission overhead are key issues in current VANETs.

Purpose of the Study:

• To propose a novel clustering technique, the Optimal Path Routing Protocol for Warning Messages (OPRP), for efficient warning message dissemination in highway VANETs.
• To enhance the reliability, security, and speed of warning message delivery while minimizing transmission overhead.
• To improve the stability and longevity of vehicle clusters through effective cluster head selection.

Main Methods:

• Developed the Optimal Path Routing Protocol for Warning Messages (OPRP) based on mobility measurement for cluster creation.
• Implemented a median-based technique for stable cluster head selection, considering odd/even vehicle counts.
• Reduced transmission overhead by enabling communication solely between cluster heads.

Main Results:

• OPRP demonstrated enhanced throughput compared to existing schemes.
• The protocol achieved a maximized packet delivery ratio and improved message validity.
• Reduced end-to-end delay was observed, indicating efficient message transfer.

Conclusions:

• OPRP effectively addresses challenges in highway VANETs by optimizing cluster formation and dissemination.
• The proposed method ensures reliable and secure warning messages, contributing to reduced traffic fatalities.
• OPRP offers a robust solution for vehicular communication in high-mobility scenarios.