  Nonlinear distortion of an OFDM signal is a serious problem when it comes to
energy-efficient Power Amplifier(PA) utilization. Typically, Peak-to-Average
Power Ratio(PAPR) reduction algorithms and digital predistortion algorithms are
used independently to fight the same phenomenon. This paper proposes an
Amplifier-Coupled Tone Reservation (ACTR)algorithm for the reduction of
nonlinear distortion power, utilizing knowledge on thep redistorted PA
characteristic. The optimization problem is defined. Its convexity is proved. A
computationally-efficient solution is presented. Finally, its performance is
compared against two state-of-the-art TR algorithms by means of simulations and
measurements. The results show the proposed solution is advantageous, both in
terms of nonlinear distortion power and the required number of computations.
