Free space pathloss model

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  • #8596
    Naser
    Participant

    Dears,
    When setting the path loss model to free space,

    LTE_config.macroscopic_pathloss_model = ‘free space’;

    Can we use it to model a carrier frequency of 10 GHz ?

    As the macroscopic path loss will follow the frequency of the “LTE.config.frequency”.

    pathloss_in_db = max(10*log10((4*pi/299792458*distance*obj.frequency).^obj.alpha),0);

    Best regards,
    Naser

    #8613

    Dear Naser,

    In the code there is no restriction about the carrier frequency used as input in the path-loss model. However I suggest to be careful, because each pathloss model is parametrized for a specific range of frequencies. In the case of free-space pathloss, by increasing the frequency, the losses will increase because the antenna gain is kept the same. In theory, with higher frequencies the antenna aperture decreases, meaning that less energy is being captured with the smaller antenna.

    Best regards,
    Fjolla

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