The advent of new generations of wireless, such as 802.11ax and 802.11be, marks a major step forward with the integration of SIC (Self Interference Cancellation) antennas. This integration enables full duplex communications, where a Wi-Fi antenna can receive and transmit signals simultaneously, a feature not possible with previous Wi-Fi standards. In this article, we focus on the medium access layer of next-generation wireless networks, highlighting full duplex communications that are primarily based on the OFDMA (Orthogonal Frequency Division Multiple Access) technique. We propose a new technique that combines OFDMA and full duplex mechanisms, which significantly improves performance in terms of throughput and ensures fair access to stations in both uplink and downlink transmissions.