| Wireless technologies |
Wireless technologies
including Bluetooth, IEEE 802.11 (Wi-Fi), WiMax, Zigbee (IEEE
802.15.4), etc
Wireless technology in a variety of forms is an area of electronics that is
developing and growing particularly fast. Wirless LAN (WLAN) technology
including Wi-Fi (IEEE 802.11), Bluetooth, Ultra-Wide Band (UWB), Wimax, Zigbee,
and more are all growing and finding their own market areas. As a result
wireless technology is being more widely used and found in many new
applications.
The development of wireless technologies
IEEE 802.11 / Wi-Fi
In recent years Wi-Fi has become increasingly popular. Enabling people to link
computers to wireless LANs either to give greater flexibility in offices, to
reduce costs by not having to install wired networks, or just to access a
computer network when using a "hotspot" in a cafe, hotel, airport lounge or
wherever, this technology has become a major force in the wireless industry in
recent months and years.
The IEEE 802.11 Wi-Fi standard for WLAN applications
IEEE 802.11 a providing 54 Mbps at 5 GHz
IEEE 802.11 b providing 11 Mbps at 2.4 GHz
IEEE 802.11 e providing Quality of Service enhancements and enabling
applications such as VoIP and streaming video
IEEE 802.11 g providing 54 Mbps at 2.4 GHz
IEEE 802.11 n Wi-Fi standard providing speeds up to 600 Mbps
Bluetooth
Bluetooth is now a well established technology, providing wire-less connectivity
for a wide variety of devices from headsets to mobile phones.
An overview of Bluetooth
Bluetooth version 2with enhanced data rate (EDR) and other new features
How to use Bluetooth
Wibree
Wibree is a new low power standard that is aimed at connecting small devices
together.
An overview of Wibree
Zigbee / IEEE 802.15.4
Zigbee is a relatively new standard that is aimed at the data collection, remote
sensing and control applications. It has a particularly robust structure that
enables it to operate reliably in harsh radio environments.
A
summary of the Zigbee standard
WiMax
WiMax is a standard that is of growing importance offering high data rate
communications over a wide or metropolitan area.
WiMax
overview
WiMax air interface / physical layer summary
Overview of 802.16 standard and the amendments including 802.16d
(802.16-2004) and 802.16e (802.16-2005)
WiMax testing
Ultra-Wide Band (UWB)
Ultra Wide band is a technology that shows an enormous amount of potential. With
data rates in excess of 1 Gbps being demonstrated, it may be ideal for many
short range applications.
An overview of Ultra Wideband Technology
The development and applications of UWB technology
Direct
Sequence Ultra Wideband
Multiband OFDM Ultra Wideband
Wireless USBa technlogy utilising UWB transmissions
Near Field Communications (NFC)
Near Field Communications (NFC) is a technology that uses local magnetic fields
to communicate over short distances, providing easily, simple connectivity.
Near Field Communications (NFC) overview
DECT Digital Enhanced Cordless Telecommunications phone system
DECT basics
DECT Specification Summary
HomeRF SWAP
Although the HomeRF working group was discontinued in January 2003, an overview
is included for reference.
HomeRF SWAP overview
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