Frequency selectivity of 60-GHz LOS and NLOS indoor radio channels

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    25 Citations (Scopus)

    Abstract

    This paper analyzes the frequency selectivity, which is caused by multipath effects, of indoor line-of-sight (LOS) and non-LOS (NLOS) channels based on channel measurements in the frequency band of 60 GHz. The coherence bandwidth is determined to characterize frequency selectivity figures of the channels employing the combination of omnidirectional, fan-beam and pencil-beam antennas at transmitter (TX) and receiver (RX) sides. The results quantitatively show how far directional configurations are more effective for combating multipath effect than the omnidirectional ones for LOS channels. The frequency selectivity of the fan-beam-to-fan-beam configuration is less sensitive to misaligned TX-RX beams than the fan-beam-to-pencil-beam one. In addition, when omnidirectional antennas are used at both TX and RX side, the frequency selectivity of a NLOS channel is less sensitive to the TX-RX height difference than that of a LOS channel. Moreover, coherence bandwidth is empirically related to root-mean-squared delay spread. Lastly, the results presented in this paper lead to some useful insights into antenna configurations and beamformer designs for a 60 GHz radio system
    Original languageEnglish
    Title of host publicationProceedings of the 63st IEEE vehicular technology conference, VTC-2006 Spring : 7-10 May 2006, Melbourne, Australia
    Place of PublicationPiscataway
    PublisherInstitute of Electrical and Electronics Engineers
    DOIs
    Publication statusPublished - 2006
    Event63rd Vehicular Technology Conference (VTC 2006-Spring) - Melbourne, Australia
    Duration: 7 May 200610 May 2006
    Conference number: 63

    Conference

    Conference63rd Vehicular Technology Conference (VTC 2006-Spring)
    Abbreviated titleVTC 2006-Spring
    CountryAustralia
    CityMelbourne
    Period7/05/0610/05/06

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