Quatech T802.11b/g Manual De Usuario

 
100-8007-141G  

AirborneDirect™ Ethernet Bridge User's Guide 

Page 65 

This appendix provides a glossary of wireless terminology. 
 

Wireless standards developed by the IEEE that specify an "over-the-air" 
interface for wireless Local Area Networks. 802.11 is composed of several 
standards operating in different radio frequencies.  

802.11b is the international standard for wireless networking that operates in 
the 2.4 GHz frequency range (2.4 GHz to 2.4835 GHz) and provides a 
throughput of up to 11 Mbps.  

802.11g is the international standard for wireless networking that operates in 
the 2.4 GHz frequency range (2.4 GHz to 2.4835 GHz) and provides a 
throughput of up to 54 Mbps.  

An interface between a wireless network and a wired network. Access Points 
can combine with a distribution system (such as Ethernet) to create multiple 
radio cells (BSSs) that enable roaming throughout a facility. 

A wireless network composed of only stations and no Access Point.  

An IEEE 802.11 service that enables the mapping of a wireless station to the 
distribution system via an Access Point.  

Type of synchronization where there is no defined time relationship between 
transmission of frames.  

The process a station uses to announce its identify to another station.  
IEEE 802.11 specifies two forms of authentication: open system and shared 
key.  

The amount of transmission capacity available on a network at any point in 
time. Available bandwidth depends on several variables such as the rate of 
data transmission speed between networked devices, network overhead, 
number of users, and the type of device used to connect PCs to a network.  

A set of 802.11-compliant stations that operate as a connected wireless 
network.  

A measurement of data transmission speed over communication lines based 
on the number of bits that can be sent or received per second.  

Basic Service Set Identifier. A 48-bit identifier used by all stations in a BSS in 
frame headers. Usually a MAC address. 

A function that determines the state of the wireless medium in an IEEE 
802.11 network.  

Any computer connected to a network that requests services (files, print 
capability) from another member of the network.  

Combines a data signal at the sending station with a higher data rate bit 
sequence, which many refer to as a “chip sequence” (also known as 
“processing gain”). A high processing gain increases the signal’s resistance 
to interference. The minimum processing gain that the FCC allows is 10, and 
most products operate under 20.