The document discusses the components and architectures of wireless networks. It describes basic service sets (BSS) which can be either ad-hoc or infrastructure networks, and extended service sets (ESS) which connect multiple BSS through a distribution system. It also outlines the 802.11 protocol stack and frame formats, including the frame control field and address fields.
5. Types of Architectures
Basic Service Set Extended Service Set
Stationary or Mobile Distributed System
wireless stations
Uses LAN to connect
Optional Central Base Central Stations form
Station Basic Service Sets
23. 1 : frames transmitted in order
0 : not transmitted in order
24. Data, Management frame : defines duration of
transmission
Control frame : defines ID of frame
25. Address1 : next device
Address2 : Previous device
Address3 : final destination if not defined by
addr1
Address4: original source if not defined by
addr2