Energy-Efficient Link Adaptation on Parallel Channels

摘要

Energy-efficient link adaptation is studied for transmissionrnon a parallel channel. The total power dissipationrnmodel includes circuit power and a power amplifier inefficiencyrnparameter. Earlier results are derived in various ways basedrnon convex minimization problems and concave maximizationrnproblems, respectively. It is shown that the fixed-point algorithmrnproposed earlier by the authors is equivalent to the Dinkelbachrnmethod for solving nonlinear fractional programs.