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Ultra Wideband Systems, Technologies and Applications, 2006. The Institution of Engineering and Technology Seminar on

Date 20-20 April 2006

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Displaying Results 1 - 25 of 40
  • Covers

    Publication Year: 2006, Page(s): C1
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  • The Institution of Engineering and Technology Seminar on Ultra Wideband Systems, Technologies and Applications

    Publication Year: 2006, Page(s): 1
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (27 KB)

    The following topics are dealt with: ultra wideband systems; UWB applications; UWB technologies; UWB propagation; UWB antennas; radio links; ultra wideband communications; ultra wideband channels. View full abstract»

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  • Copyright page

    Publication Year: 2006, Page(s):2 - 3
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  • Commentary

    Publication Year: 2006, Page(s): 3
    IEEE is not the copyright holder of this material | PDF file iconPDF (116 KB)
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  • Contents

    Publication Year: 2006, Page(s):5 - 6
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  • Programme

    Publication Year: 2006, Page(s):7 - 8
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  • Ultra Wideband - The Final Few Regulatory Processes

    Publication Year: 2006, Page(s):9 - 19
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (4222 KB)

    This article discusses the roadmap to regulatory approval for UWB, key issues currently being debated, understanding the proposals for detect and avoid mechanisms and regulatory implications for UWB. UWB is currently illegal in most countries. A key step towards its implementation is creating a regulatory regime that will allow and foster UWB. At the same time, such a regime must afford sufficient... View full abstract»

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  • Detect and Avoid (DAA) Techniques - Enabler for Worldwide Ultrawideband Regulations

    Publication Year: 2006, Page(s):21 - 29
    Cited by:  Papers (1)  |  Patents (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (3729 KB)

    Proposals for ultrawideband (UWB) regulations in the EU and Japan identify detect and avoid (DAA) as a feasible interference mitigation technique for co-existence with licensed services operating in frequencies below 5 GHz. This paper discusses the regulatory background to this requirement, the impending difficulty in setting parameters, and complexity involved in the practical implementation of s... View full abstract»

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  • Performance Analysis for Direct-Sequence Ultra-Wideband Communications Incorporating Channel-Induced Pulse Overlap

    Publication Year: 2006, Page(s):31 - 37
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1538 KB)

    We provide performance analysis for DS-UWB systems operating in multipath environments, including the effect of overlap between received pulses. Pulse overlap occurs when the pulse width is larger than the fine delay resolution of the channel. A closed-form bit error rate expression is derived and compared with simulations that employ FCC-compliant UWB pulses and the IEEE 802.15.3a channel model. ... View full abstract»

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  • On the Impact of Propagation on UWB-Based Communication and Position Location Networks

    Publication Year: 2006, Page(s):39 - 79
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (17174 KB)

    A collection of slides from the authorpsilas conference presentation is given. The following topics are covered: UWB propagation; path loss; UWB small scale channel; time dispersion; fading of primary path; position location networks; TOA estimation; and NLOS propagation. View full abstract»

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  • Cognitive Techniques for Ultrawideband Communications

    Publication Year: 2006, Page(s):81 - 86
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1033 KB)

    Cognitive radio is an emerging wireless technology that allows dynamic system reconfiguration, promising dramatic improvements in spectrum utilisation. Unlicensed spectrum sharing is the theme that binds cognitive radio and ultrawideband technologies. This paper presents an assessment of cognitive techniques for ultrawideband systems, highlighting the characteristics of this highly flexible, spect... View full abstract»

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  • Keynote Address: UWB - An Operator's View

    Publication Year: 2006, Page(s):87 - 104
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (5126 KB)

    A collection of slides from the authorpsilas seminar presentation is given. View full abstract»

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  • System Study for UWB Non Coherent Receivers Enabling Ranging and Compliance with IEEE 802.15.4A Draft Standard

    Publication Year: 2006, Page(s):105 - 121
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (7216 KB)

    Summary form only given. A strong interest has been paid towards ultra wide band (UWB) technology for wireless communications since the famous first report and order form the FCC in 2002. After years of emphasis on high data rate (HDR) short range applications, the time as come for low data rate (LDR) ones which include a ranging service. This talk focuses on receiver architectures and performance... View full abstract»

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  • Radio Link Characterization using Real Antenna Integration Scenarios for UWB Consumer Electronic Applications

    Publication Year: 2006, Page(s):123 - 130
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (3359 KB)

    The radio link performance of short range but high data rate UWB systems is affected by both the antennas and the channel. Both aspects have been widely investigated in related literature. With respect to the antenna it is often the goal to minimize the ringing to affect less the impulse radiation. Unfortunately, in most studies the antenna integration into the chassis of the specific application ... View full abstract»

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  • Operating Principles and Features of UWB Monopoles and Dipoles

    Publication Year: 2006, Page(s):131 - 152
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (6932 KB)

    The paper reviews the monopole and dipole antennas used in UWB, and proposes a simple model that explains their impedance and radiation patterns. Then some commercial issues are described, which includes practical and compact designs, and the consequences of attaching antennas to consumer equipment. View full abstract»

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  • Poster Presentations

    Publication Year: 2006, Page(s): 153
    IEEE is not the copyright holder of this material | PDF file iconPDF (20 KB)
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  • Channel Capacity Assessments in UWB Communication System Over Lognormal Fading

    Publication Year: 2006, Page(s):155 - 159
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1579 KB)

    This paper discusses the assessment of channel capacity for UWB system in the presence of lognormal fading. In frequency-flat channel, we derive the exact expression and the Jensen upper bound of ergodic-mean capacity. Since such an exact channel capacity formula seems to be intractable, we provide its almost closed form, which is manipulated for numerical integration, and then offer some approxim... View full abstract»

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  • UWB Body-Centric Network: Radio Channel Characteristics and Deterministic Propagation Modelling

    Publication Year: 2006, Page(s):160 - 164
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2180 KB)

    With the introduction of low-power, high data rate ultra wideband (UWB) technology, the idea of providing constant and reliable personal communication services with the user being the centre of attention seems more feasible and attractive. The paper presents UWB on-body radio channel characteristics in both large-scale (path loss) and small-scale (delay) prospective. Radio channel modelling using ... View full abstract»

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  • A Compact, Low Loss Ice Cream Cone Ultra Wideband Antenna

    Publication Year: 2006, Page(s):165 - 168
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1978 KB)

    In this paper a novel Ultra Wideband (UWB) antenna is proposed. This printed planar monopole structure resembles a scoop of ice cream on a wafer cone, hence it is called as ice cream cone antenna. This antenna has a microstrip feed and is fabricated on Rogers RT Duroid 5880 substrate. The effect of varying the antenna feed angle as well as the ground plane dimensions has been studied. The measured... View full abstract»

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  • Field Trials of an Accurate UWB Ranging System

    Publication Year: 2006, Page(s):169 - 175
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (3596 KB)

    This paper presents field trials carried out with a low data rate location tracking ultra wide band impulse radio testbed developed within the project PULSERS. Ranging measurements have been conducted -as a reference- in an anechoic chamber, then in line of sight office environments and non-line of sight intra room propagation conditions. Results show ranging performance better than 50 cm in the 1... View full abstract»

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  • Beamloc - An Approach for NLOS Localization in UWB Indoor Environments

    Publication Year: 2006, Page(s):176 - 180
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (590 KB)

    Indoor localization for non line of sight (NLoS) situations in unknown environments has not yet been satisfactorily solved. A new algorithm, called BeamLoc, is presented in this paper, which does not assume any a priori information about the environment. The position of a robot with an arbitrary position should be estimated via several access points (AP) installed in the indoor scenario. The robot... View full abstract»

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  • Advanced Receiver Algorithms for Multi-Layered Space-Time Block Codes

    Publication Year: 2006, Page(s):181 - 185
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1940 KB)

    In this paper we propose a new receiver architecture for multi-layered space-time block codes based on the QR decomposition and compare its performance to an alternative solution proposed by the authors based on MMSE. Both these algorithms use an iterative method based on soft decision statistics to cancel out interference from subsequent decoded layers and reduce the effect of error propagation (... View full abstract»

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  • UWB coexistence measurements with IEEE802.11a

    Publication Year: 2006, Page(s):186 - 190
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2861 KB)

    This paper discusses the experimental coexistence study work carried out with ultra wideband (UWB) and IEEE802.11a wireless local area network (WLAN). The measurement setup followed a realistic interference scenario inside a classroom where several UWB devices were spread over the room; there was one UWB transmitter for each student position and the desired terminal was moved across the room. Anot... View full abstract»

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  • Ultra-Wideband Respiratory Monitoring System

    Publication Year: 2006, Page(s):191 - 195
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2452 KB)

    In this paper, we present a method for respiratory monitoring which uses UWB signaling to detect the displacement of a human chest. Compared to other techniques that use more narrowband sources, UWB signaling offers several unique advantages, including improved resolution ability, no need for direct skin contact, lower cost and lower power consumption, among others. We present a system setup, disc... View full abstract»

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  • An Approach for Specifying the ADC and AGC Requirements for UWB Digital Receivers

    Publication Year: 2006, Page(s):196 - 200
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2800 KB)

    Digital pulsed ultra wideband (UWB) receivers offer numerous advantages compared to architectures based on analogue correlation, but present unique implementation challenges. The specification of the Analogue-to-Digital Converter (ADC) resolution constitutes one of the most critical activities in the design of digital UWB receivers. Moreover, multi-bit ADCs must be associated with an Automatic Gai... View full abstract»

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