Adaptive clipping tone reservation algorithm for PAPR reduction in OFDM/OQAM system

The Tone Reservation (TR) technique based on clipping technique is a lossless, simple and attractive Peak-to-Average Power Ratio (PAPR) reduction technique. But, when the target clipping level is set below an initially unknown optimum value, however, we observe it cannot achieve the minimum PAPR. To overcome this low clipping level problem, a novel TR algorithm with adaptive clipping control is proposed in this paper. Firstly, an adaptive strategy is used to control the size of clipping level A. Secondly, a novel step factor μ is adopted, to complete iterative computations in order to increase the convergence speed. Simulation results verify that the proposed algorithm has reduced the PAPR and improved the convergence speed significantly without side information and without any extra processing at the receiver end.