ZyXEL Communications zyair g-100 ユーザーズマニュアル

ZyAIR G-100 User’s Guide 

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Using the ZyAIR Utility 

Floors usually have metal girders and metal reinforcing struts that interfere with WLAN 
transmission. 

This section describes the wireless LAN network terms and applications.  

The SSID (Service Set Identity) is a unique name shared among all wireless devices in a wireless network. 
Wireless devices must have the same SSID to communicate with each other. 

A range of radio frequencies used by IEEE 802.11b wireless devices is called a channel.  

Your ZyAIR automatically adjusts the transmission rate to operate at the maximum transmission 
(data) rate. When the communication quality drops below a certain level, the ZyAIR 
automatically switches to a lower transmission (data) rate. Transmission at lower data speeds is 
usually more reliable. However, when the communication quality improves again, the ZyAIR 
gradually increases the transmission (data) rate again until it reaches the highest available 
transmission rate. 

Wireless LAN works in either of the two modes: ad-hoc and infrastructure. 

To connect to a wired network within a coverage area using Access Points (APs), set the ZyAIR operation 
mode to Infrastructure (BSS). An AP acts as a bridge between the wireless stations and the wired 
network.  In case you do not wish to connect to a wired network, but prefer to set up a small independent 
wireless workgroup without an AP, use the Ad-hoc (IBSS) (Independent Basic Service Set) mode. 

Ad-Hoc (IBSS)  
Ad-hoc mode does not require an AP or a wired network. Two or more wireless clients 
communicate directly to each other. An ad-hoc network may sometimes be referred to as an 
Independent Basic Service Set (IBSS).