Wireless
Wireless is an old-fashioned term for a
radio transceiver (a mixed receiver and transmitter device), referring to its use in
wireless telegraphy early on, or for a radio receiver; now the term is used to describe modern wireless connections such as in
cellular networks and wireless
broadband Internet.
:
Main article:
Radio: Invention and historyOriginally, radio technology was called 'wireless telegraphy', which was shortened to 'wireless'. The identity of the original
inventor of radio, at the time called
wireless telegraphy, is contentious. The controversy over who invented the radio, with the benefit of hindsight, can be summed up with the answer to who invented 'wireless transmission of data'?
Nikola Tesla holds the US patent for this. The founding principles and inventions of wireless technology can be found in the lectures and
patent record of the
electrical engineer Tesla (and in his
1916 deposition on the history of wireless and
radio technology). It was also later pioneered by
Jagdish Chandra Bose and
Guglielmo Marconi. A
wireless set was the
radio receiver, referring to its use as a wireless
telecommunication station. The term "wireless" was widely used in the
UK and Ireland, long after radio was being used for other signals, such as music.
The British phrase "wireless telegraphy" is one of those which, like
aerodrome, was effortlessly transferrable between British and French forces during
WWI, but which couldn't quite make it across the Atlantic to become fully accepted into American English. The French equivalent was
télégraphie sans fil, which word-for-word translates as "telegraphy without wire." The British abbreviation, used by the military, was
W/T. (When voice became transmittable over radio waves, the phrase used in the same era was "radio telephony," whose British abbreviation was
R/T.)
In modern usage,
wireless is a method of
communication that uses low-powered
radio waves to transmit
data between devices. The term refers to
communication without
cables or cords, chiefly using
radio frequency and
infrared waves. Common uses include the various communications defined by the
IrDA and the
wireless networking of
computers.
Low-powered radio waves, such as those used in networking to transmit
data between devices, are often unregulated. High powered transmission sources usually require government
licenses to broadcast on a specific wavelength.
This
platform has historically carried voice and has grown into a large industry, carrying many thousands of broadcasts around the world. Radio waves are now increasingly being used by unregulated
computer users. Optimal
bandwidth routing within wireless networks requires the calculation in real-time of the best way to direct traffic.
Software and
hardware developers are creating smaller computer
networks which form ad-hoc wireless
network, with
protocols such as
WiFi and
ZigBee. The
IEEE 802.11 standard is for wireless,
Ethernet-like
LANs. The insecurities in this protocol have popularized the concept of
war driving.
*
Bluetooth*
DECT (Digital Enhanced Cordless Telecommunications)
*
DSRC (Dedicated Short Range Communications)*
HIPERLAN*
HIPERMAN*
IEEE 802.11*
IrDA*
RFID (Radio Frequency Identification)*
WiFi*
WiMAX*
xMax*
ZigBee*
Cell phone*
Data corruption*
Federal Communications Commission*
Ultra-wideband*
Wireless campus*
Wireless energy transfer*
Wireless networking
*
Wireless security*
Wireless sensor networkPatents
* , S. Loewe, "Wireless Receiving Apparatus"
* , E. E. Clement, "Radiophone desk set"
;General*
Wireless Networking Details of different wireless technologies
*
ITPRC Wireless Resource Center*
WLAN Central Wireless and WiFi news resource.
*
Wireless World Forum Resource for Networking and Knowledge Share
*
Forum Wireless Zero13 Forum Antenas Caseras, MOD's, Enlaces Km., Hardware, Seguridad.
