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Evaluation of Connectivity Reliability of VANETs Considering Node Mobility and Multiple Failure Modes
Junhai Cao1,2, Yunlong Bian1, Chengming He1
1Department of Equipment Support and Remanufacturing, Army Academy of Armored Forces, Beijing 100072, China.
Sensors (Basel, Switzerland)
|October 16, 2025
Summary
This study investigates connectivity reliability in Vehicle Ad hoc Networks (VANETs), crucial for disaster response. Findings show node movement and failure modes significantly impact network reliability, with node attraction distance influencing isolation failures.
Area of Science:
- Computer Science
- Network Engineering
- Telecommunications
Background:
- Vehicle Ad hoc Networks (VANETs), a subclass of Mobile Ad hoc Networks (MANETs), offer multi-hop relay and dynamic topology capabilities.
- Reliable, secure, and timely communication is vital for VANETs, especially when used in clusters for disaster search and rescue or communication relay.
Purpose of the Study:
- To research connectivity reliability in VANETs.
- To analyze the impact of node movement characteristics and various failure modes on VANET connectivity reliability.
Main Methods:
- Investigated regular movement patterns in clustered VANETs, deviating from random models.
- Considered diverse node failure modes: hardware/software issues, energy depletion, attacks, and isolation.
- Proposed a routing path identification algorithm to optimize energy consumption.
- Developed a simulation algorithm to assess VANET connectivity reliability.
Main Results:
- Validated the proposed simulation algorithm's effectiveness and correctness through MATLAB experiments.
- Identified that node movement characteristics and failure modes significantly affect connectivity reliability.
- Determined that the attraction distance between nodes influences isolation failure and overall connectivity reliability.
Conclusions:
- The proposed simulation algorithm accurately models VANET connectivity reliability under various conditions.
- Understanding node movement and failure modes is critical for enhancing VANET robustness.
- Node attraction distance is a key factor to consider in VANET design for improved reliability, particularly concerning isolation failures.
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