80211standardeja

The 802.11 standard defines the specifications for wireless local area networks (WLANs), commonly known as Wi-Fi. This IEEE standard outlines the protocols for how devices communicate wirelessly. It is a suite of standards, with various amendments providing different functionalities and performance improvements. Key aspects of the 802.11 standard include the physical layer (PHY) and the medium access control (MAC) layer. The PHY layer deals with the transmission and reception of radio waves, defining frequencies, modulation techniques, and data rates. The MAC layer manages how devices share the wireless medium, addressing issues like channel access and collision avoidance.

Over time, the 802.11 standard has evolved significantly. Early versions like 802.11b and 802.11g established basic Wi-Fi capabilities. Later amendments such as 802.11n and 802.11ac introduced higher speeds and improved efficiency through technologies like MIMO (Multiple-Input Multiple-Output). The most recent iterations, including 802.11ax (Wi-Fi 6) and 802.11be (Wi-Fi 7), continue to push the boundaries of wireless performance, focusing on increased capacity, lower latency, and better handling of crowded wireless environments. These ongoing developments ensure that Wi-Fi remains a dominant technology for wireless connectivity across a wide range of devices and applications.