Difference between uwb & bluetooth?

Ultra-wide band wireless radios send short signal pulses

over a broad spectrum. For example, a UWB signal centered

at 5 GHz typically extends acrosws 4 GHz and 6 GHz. The

wide signal allows UWB to commonly support high wireless

data rates of 480 Mbps up to 1.6 Gbps at distances up to a

few meters. At longer distances, UWB data rates drop

considerably.

Bluetooth:/

One way to share wireless high-definition video across a

home network is via UWB connections. As an alternative to

Wi-Fi, UWB's higher bandwidth links can better handle large

volumes of content. Several industry standards for wireless

video streaming compete with UWB including Wireless HD

(WiHD) and Wireless High Definition Interface (WHDI).

Because its radios require low power to operate, UWB

technology can work well in Bluetooth devices. While

Bluetooth 1.0 and 2.0 did not utilize UWB, newer high-speed

versions of Bluetooth may.

The limited range of UWB signals preclude it being used for

direct connections to Internet hotspots. However, some

industry efforts have existed to enable cell phones with

UWB for peer-to-peer applications.