| Ultra Wideband Definition: | | | | approach to DS UWB. It transmits data over multiple |
| Ultra Wideband (UWB) is a radio technology that can | | | | carriers spaced apart at precise frequencies, |
| be used at very low energy levels for high bandwidth | | | | simultaneously. Fast Fourier Transform algorithms are |
| communications in a short range. Technically speaking, | | | | used for capturing energy in a multi-path environment |
| it is a technology for transmitting information over a | | | | and this provide 100 percent efficiency. |
| large bandwidth and this allows it to carry data rates | | | | Applications |
| of Gigabytes per second. It is feared that the the | | | | UWB allows people go wireless in their lives in many |
| UWB transmission may cause interference because it | | | | ways like: |
| has such a wide bandwidth. | | | | Videos recorded on digital camcorder can be played |
| UWB Technologies | | | | on HDTV without connecting wires. |
| There are two UWB technologies: | | | | Digital pictures can be transferred to photo printers |
| - Direct sequence ultra wideband technology(DS | | | | without using the cables. |
| UWB) | | | | Technical Details & Stats |
| - Multiband OFDM UWB | | | | - Frequency: Ultra Wideband transmissions can legally |
| Direct sequence ultra wideband technology(DS UWB) | | | | operate at a range of 3.1 GHz to 10.6 GHz |
| It is often referred to as an impulse, baseband or zero | | | | - Range: About 10 meters |
| carrier technology. It sends Gaussian shaped pulses | | | | - Power Consumption: Very low, less than 0.5 milliwatts |
| which are low-powered ones and are coherently | | | | - Data Transfer: Very high data rate |
| received at the receiver end. | | | | (This information may vary as UWB technology is not |
| Multiband OFDM UWB | | | | formally launched for public till now. |
| It is a form of UWB technology that is different in | | | | |