Analysis and Comparison of IEEE 802.11p and IEEE 802.11bd

As the interest to improve road safety and traffic management is growing, a new generation standard for Vehicular Ad-hoc Networks (VANETs) need to be defined to enhance the performances of the vehicular networks’ communications, in terms of reliability, latency, and throughput. Nowadays, the IEEE 802.11p related systems such as ITS-G5, are the most used C-ITS technologies in Europe. However, these radio access technologies (RATs) fall short of supporting many advanced vehicular applications’ communication requirements as high reliability, low latency, and high throughput. In this context, the IEEE 802.11bd is being defined as an amendment to IEEE 802.11p to fulfill these requirements. In this paper, we first analyze the introduced mechanisms in IEEE 802.11bd. Then, to assess its performances compared to the IEEE 802.11p, we propose a simulation-based approach by implementing this new RAT in the OMNeT++ simulator. This implementation will be tested and evaluated. We show that IEEE 802.11bd can enhance the network quality of service performance compared to IEEE 802.11p. This will allow improving road safety.