Wireless LANs.

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Presentation transcript:

Wireless LANs

14-1 IEEE 802.11 IEEE has defined the specifications for a wireless LAN, called IEEE 802.11, which covers the physical and data link layers. Topics : Architecture MAC Sublayer Physical Layer

Basic service sets (BSSs)

Extended service sets (ESSs)

MAC layers in IEEE 802.11 standard

CSMA/CA flowchart

Frame format

Subfields in FC field

Control frames

Values of subfields in control frames

Addresses

BLUETOOTH Bluetooth is a wireless LAN technology designed to connect devices of different functions such as telephones, notebooks, computers, cameras, printers, coffee makers, and so on. A Bluetooth LAN is an ad hoc network, which means that the network is formed spontaneously. Topics: Architecture Bluetooth Layers Baseband Layer L2CAP

Piconet

Scatternet

Bluetooth layers

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