MIMO Receiver

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  • #15130
    Roaa Ali
    Participant

    Hi sir,
    I search about code (ZF, MMSE, ML , Sphere) in Vienna 5G link level simulator V 1.2.
    I want to know equation for each receiver
    Best regards,
    Roaa Ali

    #15131
    Mariam Mussbah
    Keymaster

    Dear Roaa,

    You can find the code in the modulator object.

    Best,
    Mariam

    #15196
    Roaa Ali
    Participant

    Hi sir,
    thank you so much for help me .Were the equations used in MIMO receiver(ZF, MMSE, sphere, ML)????????
    W=〖(H^H H)〗^(-1) H^H FOR ZF
    W=〖[H^H H+ N_0 I]〗^(-1) H^H FOR MMSE
    S_ML=arg min┬(t∈x^Nt )⁡〖‖r-Ht‖^2 〗 FOR ML
    Best regards,
    Roaa Ali

    #15207
    Zeyu Huang
    Keymaster

    Dear Roaa,

    I think what you are looking for are the following.

    if NrRxAntennas<=NrTxStreams
    ZF_Equalizer = H_temp’/(H_temp*H_temp’);
    else
    ZF_Equalizer = (H_temp’*H_temp)^-1*H_temp’;
    end

    You can find them in the function LLR_MIMO_ZF. There are also functions LLR_MIMO_MMSE and LLR_MIMO_Sphere. I think you can find what you want in these functions.

    Best
    Zeyu

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