Wireless technology is generally
used for mobile IT equipment. It encompasses cellular telephones, personal
digital assistants (PDA's), and wireless networking. Other examples of wireless
technology include GPS units, garage door openers or garage doors, wireless
computer mice and keyboards, satellite television and cordless telephones.
Wireless networking technologies range from global voice and data networks
which allow users networks, to establish wireless connections across long
distances, to infrared light and radio frequency technologies that are
optimized for short‐range wireless connections.
Wireless network most commonly used to refer to a telecommunications
network whose interconnections between nodes is implemented without the use of
wires, such as a computer network. Wireless telecommunications networks are
generally implemented with some type of information transmission system that
uses electromagnetic waves, such as radio waves, for the carrier. Wireless
communication involves, radio frequency communication, microwave communication,
for example long‐range line of sight via highly directional antennas or short
line‐of‐antennas, shortrange communication, infrared (IR) short‐range
communication, for example from remote controls or via IRDA. Applications may
involve point‐to‐point communication, point‐to‐multipoint communication,
broadcasting, cellular networks and other wireless networks.
Type of Wireless Network: WWAN
networks. These connections can be maintained over large geographical areas,
such as cities or countries, through the use of multiple antenna sites or
satellite systems maintained by wireless service providers. WMAN technologies enable users to establishwireless
connections between multiple locations
Type of Wireless Network : WMAN within
a metropolitan area (for example, between multiple office buildings in a city
or on a university campus), without the high cost of laying fiber or copper
cabling and leasing lines.
Type of Wireless Network : WLAN a building
and can provide the final few meters of connectivity between a wired network
and the mobile user. Wireless Local Area Networks (WLAN) are implemented as an
extension to wired LANs within.
Type of Wireless Network : WLAN technologies enable users to establish
wireless connections within a local area (for example, within a WLAN corporate
or campus building, or in a public space, such as an airport). WLANs can be
used in temporary offices or other spaces where the installation of extensive
cabling would be prohibitive, or to supplement an existing LAN so that users
can work at different locations within a building at different times.
Type of Wireless Network : WPAN
technologies enable users to establish ad hoc, wireless communications for
devices (such as PDAs, WPAN cellular phones, or laptops) that are used within a
personal operating space (POS). A POS is the space surrounding a person, up to
a distance of 10 meters.
Hand‐held and other Internet‐enabled devices the majority of current
Internet content is not optimized for these devices; presently, only email,
stock quotes, news, messages and simple transaction oriented services are
messages, transaction‐available. Other limitations include low bandwidth (less
than 14 Kbps), low quality of service, high cost, the need for additional
equipment, and high utilization of devices' battery power. Nevertheless, this
type of wireless technology is growing rapidly with better and more
interoperable products.
Infrared Data Transmission is IrDA
(Infrared Data Association) is an industry standard for wireless communication
with infrared light. (Non RF) Many laptops sold today are equipped with an
IrDAcompatible transceiver that enables communication with other devices, such
as printers, modems, LANs, or other laptops. The transfer speed ranges from
2400 bps to 4Mbps. It requires line of sight transmission.
Bluetooth is an industrial
specification for wireless personal area networks (PANs).Designed for very
short range <10 m, connect and exchange information between device such as
mobile phones, laptops, PCs, printers, digital, cameras and video game consoles
over a secure, globally unlicensed short‐range radio frequency. Wi‐Fi the
underlying technology of wireless local area
Wi‐Fi the underlying technology of
wireless local area networks (WLAN)
based on the IEEE 802.11 specifications and used for mobile computing
devices, such as laptops. In LANs, increasingly used for more services,
including Internet and VoIP phone access, gaming, and basic connectivity of
consumer electronics such as televisions and DVD players, or digital cameras. 3G
3G networks are an in between standard. 3G is seen more as Pre 4G instead of a
standard of its own. The advantage 3Gnetworks have over 2G networks is speed 3G
networks are built to handle the needs of today’s wireless users. This standard
of wireless networks increases the speed of internet browsing, picture and
video messaging, and handheld GPS use. 4G (AKA Beyond 3G) is like the other
generations in that its advantage lies in promised increased speeds in data
transmission. There is currently no formal definition for 4G, but there are
objectives. One of these objectives is for 4G to become a fully IP‐based
system, much like modern computer networks. The supposed speeds for 4G will be between
100 Mbit/s and 1 Gbit/s.
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