Wideband Frequency Modulation.

Wideband Code Division Multiple Access

It stands for Wideband Code Division Multiple Access

The terms "wideband" and "broadband" mean the same thing. It simply means that a signal or noise or channel has a wide bandwidth.

Speed is the simple answer to the difference between broadband internet access and wideband internet access, but it is really more than that. Wideband is a fairly new level of high speed internet access that allows much smoother video streaming and gaming interaction via the internet. TimeWarner has introduced it for residential customers in New York City.

A system is wideband when the bandwidth it uses covers a wide range of frequencies. Having a wide range of frequencies available allows one to transmit information on all of them thus allowing great bandwidth.