Comparison of capacities for 3ASK squeezed-state and coherent-state signals

Abstract

Recently, it was shown that squeezing is good at low information rate. In this paper, we investigate capacities for 3ASK squeezed-state and coherent-state signals. As a result, it is clarified that squeezing is good not only at low information rate but also at high rate as the capacity when the signals are discrete.