The main protocol used for wireless networks is IEEE 802.11, commonly referred to as Wi-Fi. This protocol specifies standards for implementing wireless local area networks (WLANs), dictating the technology for communication between devices over radio waves. Wi-Fi enables high-speed internet access in homes, businesses, and public spaces, facilitating connectivity for a wide range of devices from computers and smartphones to IoT devices. Its widespread adoption has revolutionized how people access and share information.