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ULTRA WIDEBAND NETWORKING

ULTRA WIDEBAND NETWORKING. MALLIKA KOGATAM 00976112. Overview. What is ultra wideband? How UWB works? Characteristics of UWB Cons Applications. What is ultra wideband ?. Ultra wideband is a wireless technology for transmitting large amounts of digital data over a

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ULTRA WIDEBAND NETWORKING

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  1. ULTRA WIDEBAND NETWORKING MALLIKA KOGATAM 00976112

  2. Overview • What is ultra wideband? • How UWB works? • Characteristics of UWB • Cons • Applications

  3. What is ultra wideband ? Ultra wideband is a wireless technology for transmitting large amounts of digital data over a wide spectrum of frequency bands with very low power for a short distance.

  4. How UWB works? • Transmitter and receiver must be coordinated to send and receive pulses with an accuracy of a trillionth of a second. • In a multiple access system, a user has a unique “pseudo-random” (PN) code. • A receiver operating with the same PN code can decode the transmission.

  5. CHARACTERISTICS OF UWB • High Data Rates: UWB technology has a data rate of roughly 100 megabits per second, with speeds up to 500 megabits per second. • Low Power Consumption When transmitting data, UWB devices consume less than several tens of microwatts because the UWB transmits short impulse constantly instead of transmitting modulated waves.

  6. Interference Immunity: Ultra wideband has the ability to carry signals through doors and other obstacles that tend to reflect signals at more limited bandwidths and a higher power. • High Security: UWB has separate coding system that enableswhite-noise-like transmissions which enhances security, since receivers without the specific code cannot decode it. • Low Complexity, Low Cost: The cost of placing UWB technology inside a consumer electronics device - is $20

  7. Cons • Interference with GPS. UWB presents a problem to GPS(Global positioning satellite) because their frequency overlaps, and GPS signal is particular sensitive to interference. • Limited on range Output power is limited in order to keep down the noise floor due to its overlapping frequency bandwidth with other radio systems. • One kilometer with high gain antenna. • Ten to twenty meter with regular antenna.

  8. Affects on economy and current businesses. • Speculations on UWB making current billion dollar FCC licensed frequencies worthless. • Increased competition for local cable or phone company. Making their existent investments on cable and equipments obsolete.

  9. Applications • UWB over Wires • Communications Applications • Radar Applications • Consumer networks • Wireless USB • Peer to peer connections • Wireless high definition video

  10. References • http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4542537 • http://compnetworking.about.com/od/networkprotocols/g/ultra_wide_band.htm • http://en.wikipedia.org/wiki/Ultra-wideband • http://www.webopedia.com/TERM/U/UWB.html • http://whatis.techtarget.com/definition/ultra-wideband

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