Wireless LANs - PowrePoint Presentation, Computer Science Engineering Notes | EduRev

: Wireless LANs - PowrePoint Presentation, Computer Science Engineering Notes | EduRev

 Page 1


14.1 
 
 
Wireless LANs 
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 
 
Page 2


14.1 
 
 
Wireless LANs 
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 
 
14.2 
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. 
Architecture 
MAC Sublayer 
Physical Layer 
Topics discussed in this section: 
Page 3


14.1 
 
 
Wireless LANs 
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 
 
14.2 
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. 
Architecture 
MAC Sublayer 
Physical Layer 
Topics discussed in this section: 
14.3 
A BSS without an AP is called an ad hoc 
network; 
a BSS with an AP is called an 
infrastructure network. 
Note 
Page 4


14.1 
 
 
Wireless LANs 
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 
 
14.2 
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. 
Architecture 
MAC Sublayer 
Physical Layer 
Topics discussed in this section: 
14.3 
A BSS without an AP is called an ad hoc 
network; 
a BSS with an AP is called an 
infrastructure network. 
Note 
14.4 
Figure 14.1  Basic service sets (BSSs) 
Page 5


14.1 
 
 
Wireless LANs 
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 
 
14.2 
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. 
Architecture 
MAC Sublayer 
Physical Layer 
Topics discussed in this section: 
14.3 
A BSS without an AP is called an ad hoc 
network; 
a BSS with an AP is called an 
infrastructure network. 
Note 
14.4 
Figure 14.1  Basic service sets (BSSs) 
14.5 
Figure 14.2  Extended service sets (ESSs) 
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