Effects of slow fading SIR errors on CDMA capacity
With fast close-loop power control, slowly varying power control errors, which cannot be eliminated by coding and interleaving, have been found lognormally distributed in the received SIR and may result in great performance reduction. In this paper, a closed-form formula is derived to show an important fact that 1 dB standard deviation of the received SIR corresponds to 2.3 dB reduction of the CDMA reverse link capacity.