An Efficient Design Methodology for Constant Power Link Adaptation Schemes in Short-Range Scenarios

The energy-efficient design of short-distance wireless communication systems requires the inclusion of circuit energy consumption in the system´s total energy budget. We consider the design of constant power link adaptation schemes in which circuit energy consumption is included in the total energy budget and in which the system´s instantaneous bit error rate (BER) must never exceed a predefined threshold. We show how-in numerous cases of practical importance-the dimensionality of the associated nonlinear optimization problem can be reduced from N + 1 to 1, where N denotes the number of available transmission schemes. The main contribution-a methodology that significantly simplifies the design of such constant power link adaptation schemes-is then illustrated by an example.