Approximate rate quantization of Adaptive Modulation and Coding with near-optimum throughput

In this paper, we consider optimum rate quantization of Adaptive Modulation and Coding (AMC) systems by jointly designing the MCS levels and intervals. Optimum quantization leads to coupled non-algebraic equations, and is generally not amenable for analysis. Here, we propose two approximate AMC rate quantization methods, which are based on an observation of the optimal condition and the numerical results in the literature. The numerical results show that both proposed methods are near-optimum in expected throughput.