what's the relation between data rate and sensitivity?

Hi All,

Is there any thumb rule about data rate and sensitivity? If the sensitivity of a transceiver at 1M data rate is 90dBm, how much sensitivity could be obtained when operating at 250K data rate?

"Calculating Data Rate and Data Range .. Transmitter Power and Receiver Sensitivity .. "
http://www.devicelink.com/mem/archive/04/10/007.html

Regards,
IanP

this is the relation between the sensitivity and the data rate:

P=log10(NF)+10log10(KT)+10log10(Eb/N0)+10loag10(Rb)


SO,you should calculate this formulation