The imminent arrival of autonomous vehicles on our roads is hardly in doubt, even though the timeline for their introduction and the level of their autonomy remain subjects of debate. It is clear that these vehicles will be highly connected to maximize their benefits in terms of safety and efficiency, especially since the necessary technologies (C-ITS standards) are already in place. However, this optimistic vision masks certain challenges, particularly the question of how autonomous vehicles should communicate. Closely linked to this is another issue: what communication techniques are most suitable for vehicular communication. In this chapter, the overall performance of V2V (Vehicle-to-vehicle) communication is evaluated by using an efficient modulation technique such as orthogonal frequency division multiplexing (OFDM). Indeed, OFDM is widely utilized as a modulation scheme because of its resilience, efficient use of the frequency spectrum, and ability to mitigate inter-symbol interference (ISI). In the proposed work, the performance of the modulation scheme was evaluated across various channel models. Simulation parameters such as bit error rate (BER) versus signal-to-noise ratio (SNR) were plotted and analyzed in this chapter. Through a comprehensive evaluation of data rate and error performance, The findings reveal that OFDM with QAM modulation outperforms OFDM-QPSK, making it the optimal solution for V2V communication.