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

Abstract

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.

Sixty gigahertz indoor radio wave propagation prediction method based on full scattering model

“…The VNA frequency range was set from 5 to 9 GHz with 2 MHz intervals, and the baseband signal was mixed with the 14 GHz LO signal to produce a radio frequency signal from 61 to 65 GHz. A back‐to‐back calibration was performed before the measurements in order to compensate for the effect of cables, frequency converters, and waveguides [ Haneda et al , ]. Phase stability was maintained by minimizing cable bending during the measurement.…”