What is Wi-Fi and how it works WiFi? Has wireless fidelity refers
to wireless networks 802.11 standards developed by the IEEE - WiFi. WiFi or Wi-Fi is a
trademark of the Wi-Fi Alliance. Wi-Fi
Alliance testing devices of different Wi-Fi vendors and is a certification. If
the product without Wi-Fi Certified WLAN is a guarantee that acts according to
the 802.11 standard.
There
is also a widely used name for the Wi-Fi network and that is wireless. WLAN
- Wireless LAN or Wireless LAN is a local network based on Wi-Fi technology
Now, if you now what Wi-Fi, so clients can find out how WiFi works ..
WLAN
uses different IEEE standards for data transmission:
- 802.11a
- 802.11b
- 802.11g
- 802.11n
802.11a operates in
the 5 GHz frequency. Most
wireless signals that uses the 2.4 GHz band, so it's not much more likely to
reduce the signal strength, because the interference run with other signals on
the same frequency. Speed
is used in this standard is 54 Mbps and is almost five
times higher than the standard speed 802.11b.
802.11b
operating at a frequency of 2.4 GHz and a maximum speed of 11 Mbps. The
range indoors is about 35 meters (117 feet) and 100 meters (333 feet) in the
outdoor environment.
802.11g
operates at a frequency of 2.4 GHz, with a maximum speed of 54 Mbps. Hardware
is compatible with 802.11b hardware.
What's 802.11n Wi-Fi? Most manufacturers
use 2.4 GHz. The
unit working on 802.11n, is compatible with the old standards. The
rate is usually 150Mbps, but some wireless router can also operate at 300 Mbps.
What
is a WiFi device?
As
mentioned here already, Wi-Fi uses the wireless standard for communication
between the wireless access points or routers without broadband cable and
wireless clients or computers with the wireless internet card.
WLAN
uses nine WLAN services for packet transfer and management operations. Wi-Fi
technology uses training WLAN and WLAN infrastructure.
Without broadband wireless
router is a wireless access point, which has routing capabilities and broadband
connection has. Broadband connection is
provided by fiber optic, DSL, Ethernet or cable modem. Each
wireless broadband router is a wireless access point (wireless devices, such as
computers and PDA-s is connected to a wired network) with broadband access and
a router (a device that route packets between computer networks)
simultaneously.
What is a Wi-Fi card? It
connects devices to the wireless LAN or WiFi network. On
the web you will find the alternative card WiFi name and a wireless card. Wireless
cards support one or more standards 802.11a, 802.11b, 802.11g or 802.11n Wi-Fi.
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