Cutoff Rate Analysis of the Gauss-Markov Fading Channel with Binary Inputs and Partial CSI at the Receiver

We use cutoff rate to study the rateoptimal binary input distributions for use on the Rayleigh fading channel when only partial CSI is available at the receiver. First, we consider iid fading, and analyze the cutoff rate under partial CSI for BPSK and On-Off Keying (OOK) modulation. Then, we analytically determine the optimal distribution as a function of the faded SNR and the CSI quality available at the receiver. Lastly, we consider a temporallycorrelated Gauss-Markov fading model, and discuss attainable rates for this channel when a PSAM estimation scheme is combined with adaptive binary modulation based on the CSI quality available at the receiver.