Very near ground RF propagation measurements for wireless systems

Very near ground RF propagation measurements for wireless systems

Using a forward control channel of two different base stations as the signal source, we measure the effects associated with placing a cellular/PCS handheld transceiver very near the ground. A significant decrease in signal strength occurs when a system user drops from a standing to a lying position....

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Bibliographische Detailangaben
Hauptverfasser: Welch, T.B., Wood, J.R., McParlin, R.W., Schulze, L.K., Flaherty, T.P., Carlone Hanson, S.G., Cahill, R.J., Foran, R.A.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Antenna accessories
Base stations
Emergency services
FCC
Personal communication networks
Radio frequency
Rician channels
Shadow mapping
Telephony
Transceivers
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Beschreibung
Zusammenfassung:Using a forward control channel of two different base stations as the signal source, we measure the effects associated with placing a cellular/PCS handheld transceiver very near the ground. A significant decrease in signal strength occurs when a system user drops from a standing to a lying position. As much as a 10.9 dB decrease in signal strength can result. This effect occurs with either a weak or strong specular signal component. Additionally, when a strong specular signal component, the shadowing caused by the system user's head is small compared to the variations caused by antenna elevation.
ISSN:1090-3038
2577-2465
DOI:10.1109/VETECS.2000.851734