Figure 9: In (a) the CRB and the Chernoff bound for is shown for varyious values of at = 50 m (  dB), and  dB. Observe that the performance degradation is exponential as increases for different crossover probabilities. (b) shows the MSE, variance and for with varying with  m (  dB) and  dB. The MSE also has an exponential growth with respect to ; however, we notice the peculiar behavior of multiple critical points due to the bias and variance effect of the MLE of .