Orthogonal Frequency Division Multiple Access, or OFDMA, is a communication technology used in wireless networks. It divides a single channel into multiple smaller sub-channels, allowing different users to transmit data simultaneously without interference. This method improves the efficiency of data transmission and enhances overall network performance. OFDMA is commonly used in modern wireless standards, such as LTE and Wi-Fi 6. By allocating specific sub-channels to different users based on their needs, OFDMA can optimize bandwidth usage and reduce latency. This makes it particularly effective for applications requiring high data rates, like video streaming and online gaming.