Ultra wideband link breaks Intel record

Scientists in Singapore have demonstrated an ultra wideband (UWB) wireless link capable of transmitting and receiving data at...

Scientists in Singapore have demonstrated an ultra wideband (UWB) wireless link capable of transmitting and receiving data at speeds of more than 500Mbps, more than double the international record achieved by Intel last month.

Intel's prototype UWB radio system transmitted data at more than 220Mbps and claimed a world first for the speed. It achieved the data rate over a distance of one metre for about two hours. However, the UWB research team at the Institute for Infocomm Research (I2R) achieved a range of more than four metres

I2R is developing both high and low data-rate UWB transceivers. The high rate transceiver is suitable for video streaming and high data transfer applications. The low data rate transceiver is suitable for tracking the location of mobile wireless users and objects.

This is used in an ad-hoc network for communication and control of multiple devices and is being proposed in IEEE 802.15.4a standards.

Low-rate UWB can be used for radio frequency identification. "Typically we expect the low rate UWB to track down the location to less than a foot in accuracy," said Michael Chia, division director of communications and devices at I2R.

UWB is a wireless technology using short pulses to transmit data over a wide spectrum of frequency that typically spans several gigahertz. By generating millions of pulses a second, a UWB device can transmit large amounts of data.

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