Itc wireless network wireless guide wireless communicationschapter introduction wireless communicationsobjectives explain how the major wireless technologies are used today describe various applications wireless communications technology explain the advantages and disadvantages wireless communications technology list several different wireless technologies how wireless technology used wireless describes devices and technologies that are not connected wire wireless communications transmission user data without the use wires wireless data communications technologies include bluetooth wireless lan and wan satellite cellulara wireless world wireless devices distance feet meters bandwidth mbps can also include voice over voip wireless network interface card wireless nic sends and receives data over radio waves smartphone combination mobile phone and personal digital assistant pda wireless world continued bluetooth and ultra wide band radio frequency identification device rfid tags small chips containing radio transponders can used track inventory bluetooth and ultra wide band uwb wireless standards designed for very short ranges communicate using small

ITC254 Wireless Network
Wireless# Guide to Wireless Communications

Objectives

 Explain how the major wireless technologies are used today

How Wireless Technology is Used

	3

 Wireless devices
 Distance: 300 feet (90 meters)
 Bandwidth: 54 Mbps
 Can also include Voice over IP (VoIP)

 Wireless network interface card (Wireless NIC)
 Sends and receives data over radio waves

Bluetooth and Ultra Wide Band (cont..)

 Bluetooth
 Distance: up to 33 feet (10 meters) Bandwidth: 1 Mbps

 Ultra Wide Band
 Distance: 150 feet (50 meters) Bandwidth: 100 Mbps to 2 Gbps

 Located in the satellite itself

 Simply “repeats” the same signal to another location

	10

 Modern cellular telephone network

 Built around the concept of low power transmitters

Cellular Networks (cont..)

 Wireless Local Area Network (WLAN)
 Extension of a wired LAN
 Connecting to it through a device called a wireless access point
 Access point (AP)
 Relays data signals between all of the devices in the network
 Each computer on the WLAN has a
wireless network interface card (NIC)
 With an antenna built into it

Wireless Local Area Networks

(cont..)