IEEE Transactions on Vehicular Technology

Issue 4 • Nov. 1988

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Displaying Results 1 - 6 of 6
  • Comments on "Analysis for spectrum efficiency in single cell trunked and cellular mobile radio

    Publication Year: 1988, Page(s):220 - 222
    Cited by:  Papers (19)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (258 KB)

    Nagata and Akaiwa (see ibid., vol.VT-36, p.100-13, 1987) have committed a principal error in evaluating the area mean power of the local mean power sums with log-normal distribution. This results in overly optimistic estimates of spectrum efficiency for various mobile radio systems. The correct expression for the area mean power is given. An alternative technique for the determination of the area ... View full abstract»

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  • Field tests on a MAGLEV with passive guideway linear inductor motor transportation system

    Publication Year: 1988, Page(s):213 - 219
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    A passive guideway linear inductor motor MAGLEV research vehicle intended primarily for urban transportation applications is presented. Solutions for magnetic levitation and propulsion control together with the main sensors (airgap, acceleration, and position) are described. Preliminary field tests on a 4-t 4-m-long research vehicle, named Magnibus-01, are given. Vehicle take-off and landing, resp... View full abstract»

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  • On optimum combining at the mobile

    Publication Year: 1988, Page(s):181 - 188
    Cited by:  Papers (41)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (720 KB)

    Optimum combining for diversity antennas at the mobile is discussed. Effectively, the aim is to add the wanted signal vectors in a maximum ratio sense, while interferers are weighted so that their resultant is in a permanent deep fade. Even if there are not enough degrees of freedom available to accomplish this fully, an optimum solution can still be found. Many interpretations from conventional a... View full abstract»

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  • Unified analysis of postdetection diversity for binary digital FM mobile radio

    Publication Year: 1988, Page(s):189 - 198
    Cited by:  Papers (19)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (676 KB)

    An analysis is presented of postdetection diversity using both selection combining and general combining for the reception of a binary digital FM signal in a Rayleigh fading environment. Noncoherent (differential and frequency) demodulation is assumed. In the general combiner, the output of each branch demodulator is weighted by the νth power of the demodulator input signal envelope (weighting ... View full abstract»

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  • A formula for an FM signal under Rayleigh fading [mobile radio]

    Publication Year: 1988, Page(s):199 - 203
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB)

    A simple formula for the baseband signal-to-noise ratio of an FM signal under Rayleigh fading is derived. The formula automatically includes the noise component due to modulation. Calculated values of the average signal-to-noise ratio for FM and AM signals under Rayleigh fading are given. The results show that the FM signal with a modulation index of one or greater, outperforms an AM signal under ... View full abstract»

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  • Statistical modeling of the received signal envelope in a mobile radio channel

    Publication Year: 1988, Page(s):204 - 212
    Cited by:  Papers (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (688 KB)

    Propagation loss measurements taken in the Ottawa region in the 900-MHz frequency band are reported and discussed. Significant statistical parameters for a mobile radio channel, such as the mean, the standard deviation of the signals, the level crossing rates and the fading distance, are presented. The signal is first transformed from a time scale to a distance scale; it is then separated into slo... View full abstract»

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Aims & Scope

IEEE Transactions on Vehicular Technology covers land, airborne, and maritime mobile services, vehicular electrotechnology, equipment, and systems identified with the automotive industry.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Nei Kato, Professor
Graduate School of Information Sciences (GSIS)
Tohoku University
Aramaki-Aoba 6-3-09, Aoba-ku, Sendai, 980-8579, JAPAN
Email: kato@it.is.tohoku.ac.jp