
Extending Wireless Network
• Some nodes are allowed to roam (e.g., your laptop)
• Access points (AP) or base stations, are connected to a wired
network infrastructure to extend the network
• Wired infrastructure can be a backbone, such as Ethernet or Ring,
called Distribution System (DS)
Wired backbone (DS)
AP-1
A
B
AP-2
D
H
AP-3
C
F
BSS
ESS
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