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  1. #1
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    rx sensitivity calculation

    in 2-4GHZ range and with data rate of 4Mbps (BW=4MHZ) and QPSK modulation ,what is the best PRACTICAL receiver sensitivity thay we can achieve?

    can we design a receiver with -110dB sensitivity?

    what is the formula for RX sensitivity calculation?

    thanks

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  2. #2
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    receiver sensitivity formula

    A general formula for sensitivity level for any type of receiver is:
    RX_Sens(dBm) = –174(dBm) + 10*LOG[BW(Hz)] + NF(dB) + S/N(dB)



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  3. #3
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    formula for sensitivity calculation

    7rots51 all you have to do is recognize that the S/N
    ratio, in the equation given by Borber, depends
    on the modulation(in your case, QPSK) and the
    level of error you will want it to be. In others words,
    for example for a Pe=10^-6 ( one bit error in a
    million) the S/N ratio required could be 15 dB, by the
    the table or by the equation of Pe=f(S/N).



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