A PWM-IR-UWB transceiver for low-power data communication

Mehdi Kiani, Maysam Ghovanloo

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    4 Scopus citations

    Abstract

    This paper introduces a new impulse-radio ultra-wideband (IR-UWB) technique, combined with pulse-width modulation (PWM), to be referred to as PWM-IR-UWB, for low-power data transmission. Power saving is achieved at the transmitted (Tx) side by reducing the number of transmitted pulses for each sample. Amplitude information is encoded in the time and modulated within a sampling period, similar to PWM. A pattern of narrow pulses is then transmitted at the edges of the PWM signal. Therefore, instead of transmitting pulses for each data bit using conventional digital encoding techniques, such as pulse-position multiplexing (PPM), only two pulses are sent in lieu of multiple data bits, resulting in significant power saving. On the receiver (Rx) side, narrow pulses corresponding to PWM edges are detected and a time-to-digital converter (TDC) recovers the digital data bits corresponding to the analog sample by precisely measuring the pulse width of the recovered PWM signal. We demonstrate the proposed method by post-layout simulation of a PWM-IR-UWB transceiver in a 0.13-μm mixed-mode CMOS process. The transceiver achieved 10 bits of resolution with 2.8 pJ/bit power consumption in the Tx when transmitting a PWM signal at 10 M samples per seconds (Sps), which is the equivalent of 100 Mbps data rate.

    Original languageEnglish (US)
    Title of host publicationIEEE 2014 Biomedical Circuits and Systems Conference, BioCAS 2014 - Proceedings
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages436-439
    Number of pages4
    ISBN (Electronic)9781479923465
    DOIs
    StatePublished - Dec 9 2014
    Event10th IEEE Biomedical Circuits and Systems Conference, BioCAS 2014 - Lausanne, Switzerland
    Duration: Oct 22 2014Oct 24 2014

    Publication series

    NameIEEE 2014 Biomedical Circuits and Systems Conference, BioCAS 2014 - Proceedings

    Other

    Other10th IEEE Biomedical Circuits and Systems Conference, BioCAS 2014
    CountrySwitzerland
    CityLausanne
    Period10/22/1410/24/14

    All Science Journal Classification (ASJC) codes

    • Hardware and Architecture
    • Biomedical Engineering

    Fingerprint Dive into the research topics of 'A PWM-IR-UWB transceiver for low-power data communication'. Together they form a unique fingerprint.

  • Cite this

    Kiani, M., & Ghovanloo, M. (2014). A PWM-IR-UWB transceiver for low-power data communication. In IEEE 2014 Biomedical Circuits and Systems Conference, BioCAS 2014 - Proceedings (pp. 436-439). [6981756] (IEEE 2014 Biomedical Circuits and Systems Conference, BioCAS 2014 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/BioCAS.2014.6981756