processing gain cdma
Processing gain doesn't affect noise figure, IP3 or phase noise. However, when you are calculating the receiver sensitivity, noise figure and processing gain directly affect the sensitivity.
Sin (dBm) = NF (dB) + KTBRF (dBm) + Eb/No (dB) - PG (dB)
The effect of IP3 and phase noise depend on the type of system and it is more complicated to determine the effect on the receiver sensitivity. If you are trying to receive a QPSK signal with no interferers, then phase noise and IP3 aren't too important. If you are trying to decode a 256 QAM signal in a crowded band, then they are very important contributers to the receiver sensitivity.