There are quite a few of them but here are the most popular: BlueTooth 802.15 Freq 2.4Ghz Speed 1Mbps WireLess Networking: 802.11a Freq 5Ghz Speed 54Mbps 802.11b Freq 2.4Ghz Speed 11Mbps 802.11g Freq 2.4Ghz Speed 54Mbps
Infrared can't be used as a technology for wireless networks because of its slow speed and limited functionality. Infrared is used for wireless communication at very small level.
The common wireless frequency is 2.4 Ghz. Some wireless networks may use the 5 Ghz frequency range.
It's supposed to, but the problem with wireless networks that you can catch packets even if it was not send for you. Such problem was eliminated for wired networks a while ago, the solution is used in all routers. For wireless networks such solution cannot work in principle.
To use protected by key wireless networks (WPA, WPA2-PSK AES), MAC filters, deny access to ports which are not used.
...the wireless standards used for IEEE 802.11n and 803.15. What is the highest range and speed for these standards?
A wireless bridge is a hardware unit used to put two or more wireless networks together. They work in pairs, but there may be numerous bridges to get the full effect.
Theres a bunch. But the most common are: 802.11a - operates at 5Ghz and transmits data at 54Mbps 802.11b- operates at 2.4Ghz and tranmits data at 11Mpbs 802.11g- operates at 2.4Ghz and transmits at 54Mbps. 802.11n is the newest, it operates at 2.4Ghz but transmits at 140Mbps. These are now availble on MACINTOSH Lights...and they have the new DDR3 RAM also. They are kickin.
They are used in telecommunications for high-speed wireless broadband communication and point-to-point wireless local area networks (WLANs).
Wireless sensor networks are capable of measuring certain aspects of a physical environment. For example, there are sensors available the measure temperature, pressure, and more.
Bridge
802.1x
Both 802.11 (Wi-Fi) and 802.16 (WiMAX) are wireless communication standards developed by IEEE. They operate in the 2.4 GHz and 5 GHz frequency bands and support Internet access. Both standards provide wireless connectivity over relatively long distances, with Wi-Fi typically used for smaller networks and WiMAX for wider area coverage.