2) z = db2pow(randn(1)*8);

]]>1) Does it mean that the channel quality does not depend on distance from user to BS but it depends on z_ijk: log-normal variable? So what does z_ijk mean in this model (scrattering, obstacle…).

2) How can I generate z_ijk with standard deviation = 8 dB on Matlab?

Thank you very much for your time!