Post by kindrix on Oct 26, 2008 3:56:55 GMT -5
hi all, just have a few doubts about the pdf of rayleigh fading channel snrs and channel gain...
1)what is the difference between channel gain and received snr?
2)in the proakis book , it says the received snr is exponetially distributed, does it mean the channel gain (if different) is also exponentially distributed?
3) if gain is before adding noise, is received voltage/ transmitted voltage the channel gain or does it have to be received power/ transmitted power?
4)when i square the received envelope to get the power envelope (i assume), and when i draw a histogram, it turns out to exponentially distributed too...why?
thank you for taking time to look at these questions....i think they may be fundamental questions but i am having a hard time understanding.....please add other relevant info if necessary....
kc
1)what is the difference between channel gain and received snr?
2)in the proakis book , it says the received snr is exponetially distributed, does it mean the channel gain (if different) is also exponentially distributed?
3) if gain is before adding noise, is received voltage/ transmitted voltage the channel gain or does it have to be received power/ transmitted power?
4)when i square the received envelope to get the power envelope (i assume), and when i draw a histogram, it turns out to exponentially distributed too...why?
thank you for taking time to look at these questions....i think they may be fundamental questions but i am having a hard time understanding.....please add other relevant info if necessary....
kc
