User's Manual

802.11b/g Wireless Card User Manual
6
Chapter
Chapter Chapter
Chapter 1.
1. 1.
1. Wireless LAN Network
Wireless LAN Network Wireless LAN Network
Wireless LAN Network
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1.1 Overview
.1 Overview .1 Overview
.1 Overview
This section describes the wireless LAN network terms and applications.
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1.1.1 SSID
.1.1 SSID .1.1 SSID
.1.1 SSID
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.
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1.1.2 Channel
.1.2 Channel .1.2 Channel
.1.2 Channel
A radio frequency used by a wireless device is called a channel.
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1.1.3 Transmission Rate (Tx Rate)
.1.3 Transmission Rate (Tx Rate) .1.3 Transmission Rate (Tx Rate)
.1.3 Transmission Rate (Tx Rate)
The 802.11b/g Wireless Card
802.11b/g Wireless Card802.11b/g Wireless Card
802.11b/g Wireless Card provides various transmission (data) rate options for you to select.
Options include Auto, 1 Mbps, 2 Mbps, 5.5 Mbps, 11 Mbps, 6 Mbps, 9 Mbps, 12 Mbps, 18 Mbps, 24
Auto, 1 Mbps, 2 Mbps, 5.5 Mbps, 11 Mbps, 6 Mbps, 9 Mbps, 12 Mbps, 18 Mbps, 24 Auto, 1 Mbps, 2 Mbps, 5.5 Mbps, 11 Mbps, 6 Mbps, 9 Mbps, 12 Mbps, 18 Mbps, 24
Auto, 1 Mbps, 2 Mbps, 5.5 Mbps, 11 Mbps, 6 Mbps, 9 Mbps, 12 Mbps, 18 Mbps, 24
Mbps, 36 Mbps, 48 Mbps, and 54 Mbps
Mbps, 36 Mbps, 48 Mbps, and 54 MbpsMbps, 36 Mbps, 48 Mbps, and 54 Mbps
Mbps, 36 Mbps, 48 Mbps, and 54 Mbps. In most networking scenarios, the factory default Auto
setting proves the most efficient. This setting allows your WLAN
WLAN WLAN
WLAN Adapter
AdapterAdapter
Adapter to operate at the
maximum transmission (data) rate. When the communication quality drops below a certain level,
the WLAN
WLAN WLAN
WLAN Adapter
AdapterAdapter
Adapter 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 WLAN
WLAN WLAN
WLAN Adapter
AdapterAdapter
Adapter gradually increases the transmission (data) rate again until it reaches
the highest available transmission rate.
You can select any of the above options. If you wish to balance speed versus reliability, select 48
Mbps or 54 Mbps in a networking environment where you are certain that all wireless devices can
communicate at the highest transmission (data) rate. 1 Mbps or 2 Mbps are used often in
networking environments where the range of the wireless connection is more important than
speed.
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1.1.4 Wireless Network Application
.1.4 Wireless Network Application .1.4 Wireless Network Application
.1.4 Wireless Network Application
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 WLAN Adapter 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
AdAd
Ad-
--
-Hoc (IBSS)
Hoc (IBSS) Hoc (IBSS)
Hoc (IBSS)
Ad-hoc mode does not require an AP or a wired network. Two or more wireless stations
communicate directly to each other. An ad-hoc network may sometimes be referred to as an
Independent Basic Service Set (IBSS).