Wednesday, June 1, 2011

Wireless Fidelity

Wireless broadband systems use radio signals to send and receive data and voice at speeds ranging from 128 kbps to 1.5 Mbps. However, speeds are increasing every day and many Wi-Fi systems can transmit at speedsfrom 1-12 Mbps. In general, wireless providers offer Internet access via fixed wireless technology that relies on a stationary signal base. Wireless broadband services use the same radio frequency spectrum that supports pagers, cell phones, microwave signals and more.

With a fi xed wireless system, the provider installs a small antenna (dish) at the user’s premises which is wired to a modem on the user’s computer. Radio waves sent from the user’s antenna to the provider’s antenna connect the computer to the Internet. For optimal usage, the user’s
antenna should have a clear line-of-sight to the wireless broadband provider’s antenna. Bad weather, rugged topography and line-of-sight obstructions can impede service.

tooth are not interoperable. Bluetooth is a computing and telecommunications industry specifi cation that describes how mobile phones, computers and PDAs can easily interconnect with each other as well as telephones and computers using a wireless connection over very short distances. Bluetooth and Wi-Fi are different in a number of ways and should not be viewed as competitors. The biggest difference between the technologies is that Wi-Fi boasts faster data transfer speeds and range, making it a good replacement for Ethernet systems, while Bluetooth requires less power and is prominent in small systems such as personal digital assistants (PDAs).

1 comment:

  1. thanks for the information about Wireless Fidelity (Wi-Fi)


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