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Ultra Wideband Technology

Ultra Wideband Technology. Group 6 Will Culberson Ben Henley. What is UWB?. Definition: A ny wireless transmission scheme occupying a bandwidth of more than 1.5 gigahertz (GHz) .

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Ultra Wideband Technology

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  1. Ultra Wideband Technology Group 6 Will Culberson Ben Henley

  2. What is UWB? • Definition: Any wireless transmissionscheme occupying a bandwidth of morethan 1.5 gigahertz (GHz). • Uses highfrequencymicrowave pulses for transmittingdata over a wide spectrum offrequency bands with very low powerintensity. It can transmit data at very highrates and very low rates. • Has theability to carry signals through doors andother obstacles that tend to reflect signals atmore limited bandwidths and at higherpower levels.

  3. What is it for? • UWB transmissions are not carried on the traditional sine wave they are much more compact and pulsating over the spectrum. • Allows for a much quicker transmission of very large data with very low power. • Police and fire departments arealready trying out devices that can detectpeople behind walls.

  4. Government and Industry Interest • Stop congestion • Wireless today is trying to operate with very little space for next-generation ideas • Eliminate interference • According to one estimate 20,000 people can use a UWB phone in one square block without interference. • Secure Transmissions • UWB devices transmit millions ofcoded pulses per second at extremely low emissions andacross an ultra wide bandwidth. • Very low radio frequency which provides a very low probability of detection. • Reduce power consumption • a chip thatconsumes only 0.05 milliwatts ofpower compared withthe hundredsof milliwatts used by today’s cellphones.

  5. Regulations • Due tothe wideband nature of UWB emissions,UWB transmissions could interfere withother licensed bands in the frequencydomain if left unregulated. • Must satisfy the need formore efficient methods of using availablespectrum (as represented by UWB devices),while not causing potential interference forthose currently using the spectrum.

  6. Application • One company is developing chips for a golf product calledCaddy which precisely measures thedistance from tee to hole. • This ability todetermine precise ranging can be applied tolaw enforcement activities such as hostagestandoff situations. • Home security and homeentertainment systems could becomewireless using UWB technology. • Home security bubble that can detect thedifference between an insect, a small pet,and person that could be an intruder. Itcould also detect one’s pending arrival home(thanks to a small identification card that isworn, perhaps, on a belt) and open thegarage door as the driver pulls in.

  7. Applications Continued • UWB is not capable of transmission over longdistances.As a result, it is not expected toreplace existing cellular/personalcommunications services technologies, but will complement them byproviding a bandwidth option insidebuildings and homes. • When a cell phoneuser enters an UWB-equipped building, thatuser’s phone connection might switchautomatically from the cellular tower to aUWB transmitter.

  8. Conclusion • Benefits • Potential low-costimplementations • New applications • Low-power consumption • Accurate positionlocation that could be combined withcommunications capabilities • Challenges • Regulations • Transmission limits (not interfering with current signals)

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