Conference Paper

Power Azimuth Spectrum Measurements in Home and Office Environments at 62.4 GHz

Mitsubishi Electr. ITE B.V., Guildford
DOI: 10.1109/PIMRC.2007.4394455 Conference: Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007. IEEE 18th International Symposium on
Source: IEEE Xplore


The high demand for unlicensed spectrum mandates the use of higher frequencies, such as the 60 GHz band, where large amounts unlicensed bandwidth exists. In this paper, the results from Power Azimuth Spectrum (PAS) measurements in a home and an office environment are presented with a view of revealing the amount of scattering power at that frequency and its relative power to the Line-of-Sight (LoS) signal. Moreover, a tractable scheme is proposed for the estimation of the Power Azimuth Spectrum from absolute power measurement data which produces a very close fit with the measured PAS. A discussion is made on the accuracy of this method which is dependent on the directionality of the antenna elements, the fading in the channel and the presence of noise.

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    IEEE Journal on Selected Areas in Communications 01/2003; 21:812-818. · 3.45 Impact Factor
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    ABSTRACT: A simple and novel method for estimating the power azimuth spectrum (PAS) is presented in this letter. Analysis shows that the expected power received by the directional antenna can be expressed as the integral of the PAS multiplied by the antenna pattern. Therefore, the PAS can be estimated by conducting azimuth-scanning power measurements with directional antenna and solving the integral equation. The influence of the antenna directivity on estimation is also analyzed.
    IEEE Antennas and Wireless Propagation Letters 01/2007; 5(1-5):11 - 14. DOI:10.1109/LAWP.2005.863614 · 1.58 Impact Factor
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    ABSTRACT: This paper reports the 62.4 GHz fixed wideband propagation measurements undertaken in six different LOS indoor environments (corridors and rooms) inside three buildings. Measurement analyses are presented in respect of static RMS delay spreads and received signal level. Uniformity of delay spread was observed for all the cases investigated. A correlation is observed with the static delay spread increasing monotonically with increasing base-portable receiver antennas separation. For low values of the received signal level the delay spread values are relatively high and vice-versa. It has been observed that important indoor radio channel characteristics are determined by the principal structure of the environments and do not depend significantly on minor details like furniture and room fixtures
    Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd; 02/2001
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