Wireless N – Are you up to Speed?
You just bought your Wireless N router and you take it home thinking that you are now going to see wireless speeds that are blazing fast compared to your Wireless G router.
Here is the inside scoop on Wireless N products
Wireless N claims to give you the ability of having 300 mbps speeds. This is only theory speed not the real speed. Even if this speed was reachable in the “Real World” wireless networks are half-duplex which means that you can only transmit or receive not both at the same time. So, this will drop your speeds down to 150mbps. Now add in walls or other obstacles (walls, doors, metal objects), co-channel interference and distance you are probably left with a whole 54 mbps to work with.
Wireless networks speeds are a combination of how much non-fluctuating bandwidth is available and how far that stable signal will transmit. You could have a very stable signal at 20 feet away but in the next room it could drop down to nothing. Or you could have a wireless signal that travels very far but almost zero stability. A stable signal gives you the ability for Streaming video, Wireless VOIP phone calls, Multi-media and much more.
Wireless N certification is interpreted by each vendor in a different way so get the most out of you wireless N network is to use a wireless router / access point and wireless adapters form the same vendor. Next find out how many mill watts or dbm the wireless access point will transmit at. The more mill watts or dbm the more powerful the radio. Next check to see what types of antennas does the wireless access points and adapters use. Some wireless access points have only one antenna while others have up to 14. More is not always better but in general it helps. Finally if you want Wireless N Speeds the computer and wireless access point need to be Wireless N.
Remember Wireless N speed depends on distance, obstacles, vendors, antennas, interference, placement, configuration and client sensitivity.