An Energy-Detector for Noncoherent Impulse-Radio UWB Receivers

Gerosa, A.; Solda, S.; Bevilacqua, Andrea; Vogrig, D.; Neviani, A.

doi:10.1109/tcsi.2009.2016125

Cited by 56 publications

(23 citation statements)

References 22 publications

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“…The receiver power ( ), the transmitter power ( ) and the total power ( ) can be given as below (21) Thus, the ratio of the to can be given utilizing (20) and (21) as below, after simplification (i.e., after canceling the term from both the numerator and denominator) (22) As can be seen from (22) for low data rate applications (i.e., ), the impulse radio with its duty-cycled receiver and transmitter will facilitate lower power consumption for a link of given path loss. The same analysis can be done even including the overhead and leakage power, in which the equation for the relative ratio will change to (23) (23) Again, it can be easily seen that the continuous wave radio consumes higher power than the impulse radio, as . Fig.…”

Section: Comparison Between Duty-cycled Impulse and Cw Radiosmentioning

confidence: 99%

“…Impulse radio as an extreme case of these duty-cycled architectures is expected to facilitate ultra low power communication, since the power hungry RF-block need only be on during transmission and reception of short-duration pulses. Impulse radio communication is also interesting since it operates in unlicensed spectrum, and is less sensitive to carrier frequency variations [21]- [23]. However, compared to narrowband architectures, wideband impulse radios have wider bandwidth (requiring higher power) and higher susceptibility to noise.…”

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confidence: 99%

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A Low Power Impulse Radio Design for Body-Area-Networks

Dokania

Wang

Tallur

et al. 2011

IEEE Trans. Circuits Syst. I

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This paper presents a low power radio design tailored to the short distance, low data rate application of body area networks. In our analysis we consider a comparison between traditional continuous wave radios and ultra wide band impulse radios for this application space. We analyze the energy/bit requirement for each of the architectures and discuss how a duty-cycled radio is better suited to low data rate applications due to practical design considerations. As a proof-of-concept we present the design and measured results of a duty-cycled, noncoherent impulse radio transceiver. The designed transceiver was measured to consume only 19 W at a data-rate of 100 kbps. The design gives a BER of 10 5 and works for a range of 2.5 m at an average Rx-sensitivity of 81 dBm. The designed transceiver enables both OOK and BPSK schemes and can be configured to use a pseudocoherent self-correlated signature detection and generation mechanism. This added functionality helps distinguish different types of pulses such as timing and data-pulses in real time. The transceiver was designed in a 90 nm CMOS process and occupies 2.3 mm 2 area.Index Terms-Body-area-networks, impulse radio, noncoherent detection, ultralow-power radio, ultrawideband (UWB), wireless sensor networks.

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Section: Comparison Between Duty-cycled Impulse and Cw Radiosmentioning

confidence: 99%

mentioning

confidence: 99%

A Low Power Impulse Radio Design for Body-Area-Networks

Dokania

Wang

Tallur

et al. 2011

IEEE Trans. Circuits Syst. I

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“…When the signal is strong enough receivers can be noncoherent, which are usually simpler but more susceptible to noise. Most non-coherent topologies are based on squaring and then integrating the signal [29,[35][36][37][38][39][40], however other techniques using comparison [41] or super-regeneration [42][43][44] have been proposed. In this special session a hybrid method, combining both coherent and non-coherent methods, is presented in "Partially Coherent Signal Combination for Impulse Radio Synchronization".…”

Section: Receiversmentioning

confidence: 99%

Recent advances in IR-UWB transceivers: An overview

Fernandes

Wentzloff

2010

Proceedings of 2010 IEEE International Symposium on Circuits and Systems

102

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Modern Ultra-Wide Band (UWB) regulations have recently been adopted worldwide allowing for unlicensed operation within 3.1 and 10.6 GHz, using an appropriate wideband signal format with a low Effective Isotropic Radiated Power (EIRP) level. UWB characteristics are suitable to transmit data using pulses instead of continuous-waves such as in narrowband radio links. It has the potential to be the right technology for high data-rate, low-power and short-to-medium range communication systems.We will focus on Impulse Radio-UWB (IR-UWB) systems and show their suitability for many different applications, including sensor networks, ad-hoc networks, cognitive radio, home networking, etc. We will also discuss the difficulties and challenges of designing IR-UWB systems. We present a tutorial overview of UWB regulations and usable signals.We present the existing standards and recommendations, and we review recently published results, highlighting trends in UWB transceiver power consumption and the impact of CMOS scaling on performance.

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“…It is also an advantage of the impulse radio receiver that it can work with a low-resolution A/D converter. The impulse radio transceiver development has been considered mainly in the low-frequency ultrawideband systems (below 10.6 GHz), e.g., [4], [5] and references therein. However, thanks to the progress of semiconductor technology, development of the impulse radio transceiver has also been performed in the mmwave range [6], [7].…”

Section: Introductionmentioning

confidence: 99%

Feasibility Study of a Mm-Wave Impulse Radio Using Measured Radio Channels

Haneda

Tufvesson

Wyne

et al. 2011

2011 IEEE 73rd Vehicular Technology Conference (VTC Spring)

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Feasibility study of a mm-wave impulse radio using measured radio channels Haneda, Katsuyuki; Tufvesson, Fredrik; Wyne, Shurjeel; Ärlelid, Mats; Molisch, Andreas Link to publication Citation for published version (APA): Haneda, K., Tufvesson, F., Wyne, S., Ärlelid, M., & Molisch, A. (2011). Feasibility study of a mm-wave impulse radio using measured radio channels. In [Host publication title missing] IEEE--Institute of Electrical and Electronics Engineers Inc.. DOI: 10.1109/VETECS.2011 General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal Take down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Abstract-A millimeter-wave (mm-wave) impulse radio is an attractive alternative to existing high-speed mm-wave radio systems because of the potential for a simpler transceiver architecture. This paper studies the feasibility of a mm-wave impulse radio system for home and office use by considering state-ofthe-art transceivers and multiple-input multiple-output measured propagation channels as well as the IEEE 802.15.3c channel model. Our analysis reveals that reliable data transmission is infeasible even in line-of-sight (LOS) scenarios because of a low power level at the Rx if we do not use beamforming. However, introducing 7 × 7 beamforming at the Tx dramatically improves the coverage beyond 5 m distance in the LOS scenario and up to 5 m in a non-line-of-sight (NLOS) scenario, though the performance varies in the NLOS scenario, depending on the Tx and Rx locations. We propose an adaptive transmit signaling scheme that adjusts the pulse repetition frequency depending on the delay dispersion of the propagation channel in order to avoid intersymbol interference and keep the Rx structure simple. The proposed transmit signaling scheme leads to a pulse transmission rate of 250 Mpulses/s in all measured channels while the rate is lower when the 802.15.3c model is considered because of a more multipath-rich characteristics than our measured channels.

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An Energy-Detector for Noncoherent Impulse-Radio UWB Receivers

Cited by 56 publications

References 22 publications

A Low Power Impulse Radio Design for Body-Area-Networks

A Low Power Impulse Radio Design for Body-Area-Networks

Recent advances in IR-UWB transceivers: An overview

Feasibility Study of a Mm-Wave Impulse Radio Using Measured Radio Channels

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