ZyXEL Communications ZyAIR B-500 User Manual

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ZyAIR B-500 Wireless Access Point User’s Guide 
 
Wireless Configuration and Roaming                                                                                              5-3 
 
Figure 5-3 Extended Service Set 
5.2  Wireless LAN Basics  
Refer also to the chapter on wizard setup for more background information on Wireless LAN features, such 
as channels. 
5.2.1 RTS/CTS  
A hidden node occurs when two stations are within range of the same access point, but are not within range 
of each other. The following figure illustrates a hidden node. Both stations (STA) are within range of the 
access point (AP) or wireless gateway, but out-of-range of each other, so they cannot “hear” each other, that 
is they do not know if the channel is currently being used. Therefore, they are considered hidden from each 
other.