What is IEEE 802.11 protocol stack?

What is IEEE 802.11 protocol stack?

IEEE 802.11 standard, popularly known as WiFi, lays down the architecture and specifications of wireless LANs (WLANs). WiFi or WLAN uses high frequency radio waves instead of cables for connecting the devices in LAN. Users connected by WLANs can move around within the area of network coverage.

Which layer in the IEEE 802.11 protocol stack has the function?

Which layer in the IEEE 802.11 protocol stack has the function of flow control and error control? Explanation: Logic Link Layer has the function of flow control and error control.

What are the layers in IEEE 802.11 architecture?

The three physical layers are an IR base band PHY, an FHSS radio in the 2.4 GHz band, and a DSSS radio in the 2.4 GHz.

Which layer IEEE 802.11 protocol stack will define the characteristics specifications of access points?

IEEE 802.11 is a set of medium access control (MAC) and physical layer (PHY) specifications for implementing Wireless Local Area Network (WLAN) communication.

Is 802.11 ac a Layer 1 or Layer 2 standard?

Explanation. The 802.11 protocol operates in two very specific layers of the OSI model; Layer 1 and Layer 2. Just because Layer 1 is “Physical” it doesn’t mean that it must be physical cabling – radio waves also apply here.

What are the main components of 802.11 networks?

IEEE 802.11 Architecture

• Stations (STA) − Stations comprise all devices and equipments that are connected to the wireless LAN.
• Basic Service Set (BSS) −A basic service set is a group of stations communicating at physical layer level.
• Extended Service Set (ESS) − It is a set of all connected BSS.

What is the frequency range of IEEE 802.11 a standard?

Operates in the 5 GHz frequency range (5.125 to 5.85 GHz) with a maximum 54 Mbps signaling rate.

How many layers does 802.11 have?

The 802.11 protocol operates in two very specific layers of the OSI model; LAYER 1 and LAYER 2. Lets look closely at those layers and detail what happens at each layer. LAYER 1 – Layer 1 has 2 sub layers (PLCP) Physical Layer Convergence Procedure and (PMD) Physical Medium Dependent.

Is 802.11 a link layer?

The data link layer within 802.11 consists of two sublayers: Logical Link Control (LLC) and Media Access Control (MAC). 802.11 uses the same 802.2 LLC and 48-bit addressing as other 802 LANs, allowing for very simple bridging from wireless to IEEE wired networks, but the MAC is unique to WLANs.

What are the main characteristic features of the IEEE 802.11n wireless standard?

Basic specification for the IEEE 802.11n standard

• Changes to implementation of OFDM.
• Introduction of MIMO.
• MIMO power saving.
• Wider channel bandwidth.
• Antenna technology.
• Reduced support for backward compatibility under special circumstances to improve data throughput.