IEEE 8011 Architecture
1. What are the different types of 802.11 frames?
There are three types of frames defined in IEEE 802.11 standard: Data, Management and Control frame.
2. What does 802.11 b stand for?
802.11b, often known as 802.11 High Rate or Wi-Fi, is a standard set by IEEE as an enhancement to the original 802.11. This standard enables wireless LANs to transmit at 11 Mbps, though it can reduce to 5.5, 2, or 1-Mbps when necessary, and operates in the 2.4 GHz frequency band.
3. How does 802.11 work?
The 802.11 protocol series uses carrier-sense multiple access with collision avoidance (CSMA/CA). This means that devices first check a channel for other active users, including those not using the 802.11 standard, before sending each frame. While some might refer to these as “packets,” the more technically accurate term is “frame.”
IEEE 802.11 Architecture
The IEEE 802.11 standard, commonly known as Wi-Fi, outlines the architecture and defines the MAC and physical layer specifications for wireless LANs (WLANs). Wi-Fi uses high-frequency radio waves instead of cables for connecting the devices in LAN. Given the mobility of WLAN nodes, they can move unrestricted within the network coverage zone. The 802.11 structure is designed to accommodate mobile stations that participate actively in network decisions. Furthermore, it can seamlessly integrate with 2G, 3G, and 4G networks.
The Wi-Fi standard represents a set of wireless LAN standards developed by the Working Group of IEEE LAN/MAN standards committee (IEEE 802). The term 802.11x is also used to denote the set of standards. Various specifications and amendments include 802.11a, 802.11b, 802.11e, 802.11g, 802.11n etc.
Table of Content
- Important Terminologies of IEEE 802.11 Architecture
- IEEE 802.11 Architecture and Services
- Services provided by the WLAN
- Frame Format of IEEE 802.11
- WiFi Alliance
- Advantages and Disadvantages of IEEE 802.11 Architecture
- Applications of IEEE 802.11 Architecture
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