RMS delay spread in indoor LOS environments at 5.2 GHz

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RMS delay spread in indoor LOS environments at 5.2 GHz

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Measurements and modelling of RMS delay spread (RDS) in indoor line-of-sight (LOS) conditions at HIPERLAN/U-NII frequencies (5.2 GHz) with omni-directional antennas show that the maximum RDS in a room is dependent on the dimensions of the room and the reflection coefficient of the walls. Furthermore, in a given room, RDS increases with distance from the transmitter up to a maximum value and plateaus at this maximum over a large part of the room.

Inspec keywords: indoor radio; microwave propagation; delays; wireless LAN

Other keywords: omni-directional antennas; 5.2 GHz; HIPERLAN/U-NII frequencies; wall reflection coefficient; RMS delay spread; room dimensions; SHF; indoor line-of-sight conditions; indoor LOS environments

Subjects: Radio links and equipment; Radiowave propagation

References

    1. 1)
      • J.C.-I. Chuang . The effects of time delay spread on portable radio communications channelswith digital modulation. IEEE J. Sel. Areas Commun. , 5 , 879 - 889
    2. 2)
      • A. Goldsmith . (2005) Wireless communications.
    3. 3)
      • Hafezi, P., Wedge, D., Beach, M.A., Lawton, M.: `Propagation measurements of the5.2 GHz radio band in commercial and domestic environments', PIMRC'96, 1996.
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