Transcript UWB - Aalto
Ultra Wideband Technology T-109.551 Research Seminar on Telecommunications Business II 19.03.2003 Haapaniemi, Isola: UWB 1 Segmentation of Wireless Solutions 1/2 PAN • Device networks • < 10 m • Bluetooth 19.03.2003 WLAN • Computer networks • Indoor < 60 m • Outdoor < 200 m • IEEE 802.11 a/b/g/h • HiperLAN2 • TCP/IP Haapaniemi, Isola: UWB 2 Segmentation of Wireless Solutions 2/2 vs. • Ultra Wideband • OFDM 19.03.2003 • • • • Bluetooth HiperLAN2 IEEE 802.11 a/b/g/h UMTS Haapaniemi, Isola: UWB 3 Introduction to UWB 1/4 - Technology - • Extremely short pulses in the time domain • Large bandwidth in the frequency domain F Amplitude Amplitude • Fractional bandwidth=(fH-fL)/fC> 25% • or total bandwidth > 1,5 GHz S time / s 19.03.2003 Haapaniemi, Isola: UWB B frequency / Hz 4 Introduction to UWB 2/4 - TechnologyPROS CONS • High data rates • Short operating ranges • Low transmission power • Interference with other licensed, • Multipath immunity ”narrowband” systems • Simple implementation, low cost 19.03.2003 Haapaniemi, Isola: UWB 5 Introduction to UWB 3/4 - Regulations - • FCC approved the sale of UWB products in the United States under certain limits in February 2002 • UWB devices are allowed to work on very low power levels to avoid interference • ETSI is working on proposal in Europe 19.03.2003 Haapaniemi, Isola: UWB 6 Introduction to UWB 4/4 - Applications - • • • • • • Automotive collision-detection systems Medical imaging Through-wall imaging Ground-penetrating radar Communications devices Cable replacement (USB, Firewire) 19.03.2003 Haapaniemi, Isola: UWB 7 Companies – Xtreme Spectrum (Trinity chipset) – Philips (chipsets for IEEE 802.15.3a) – Mitsubishi Electric (development of UWB channel model) – Cisco, Intel and Motorola 19.03.2003 Haapaniemi, Isola: UWB 8 Complementing and Competing Technologies • GSM, GPRS, EDGE and UMTS are complementing due to their superior mobility compared to others • Wired solutions are always required as backbones • Most probable competitors are Bluetooth, IEEE 802.11 and HiperLAN2 19.03.2003 Haapaniemi, Isola: UWB 9 Three Scenarios 1/3 • PAN: Bluetooth • WLAN: IEEE 802.11 • UWB gains popularity in small segments like automobile collision detection and wall-through radars UWB remains as marginal technology 19.03.2003 Haapaniemi, Isola: UWB 10 Three Scenarios 2/3 • PAN: UWB replaces Bluetooth • WLAN: UWB and IEEE 802.11 co-exist • Transition to HDTV in USA opens totally new market that benefits UWB. CATV operators exploit this opportunity. UWB is widely used where it is best 19.03.2003 Haapaniemi, Isola: UWB 11 Three Scenarios 3/3 • PAN: UWB replaces Bluetooth • WLAN: UWB replaces IEEE 802.11 • Integration with IEEE 802.3 framing and IP succeeds. New product that combine mobile networks and UWB hit the market. UWB becomes a major solution for short range wireless services 19.03.2003 Haapaniemi, Isola: UWB 12 Market Estimates 19.03.2003 Haapaniemi, Isola: UWB 13 Links Ultra Wideband Working Group http://www.uwb.org/ Federal Communications Commission http://www.fcc.gov/ European Telecommunications Standardisation Organisation http://www.etsi.org/ Jupitermedia Corp. UWB News http://www.ultrawidebandplanet.com/ 19.03.2003 Haapaniemi, Isola: UWB 14 Thank you for your attention Be free to ask questions 19.03.2003 Haapaniemi, Isola: UWB 15