Adaptive Active Constellation Extension Algorithm forPeak-to-Average Ratio Reduction in OFDM ABSTRACT: For PAR reduction in OFDM systems, the clipping-based Active Constellation Extension (ACE) technique is simple and attractive for practical implementation. However, we observe it cannot achieve the minimum PAR when the target clipping level is set below an initially unknown optimum value. To overcome this low clipping ratio problem, we propose a novel ACE algorithm with adaptive clipping control. Simulation results demonstrate that our proposed algorithm can reach the minimum PAR for severely low clipping ratios. In addition, we present the tradeoff between PAR and the loss in Eb/No over an AWGN channel in terms of the clipping ratio. Did you like this research project? To get this research project Guidelines, Training and Code... Click Here facebook twitter google+ linkedin stumble pinterest Design of Spreading Permutations for MIMO-CDMA Based on Space-Time Block Codes Analysis of BER Performance in Presence of Nonlinear Distortion Due to PD-HPA in Downlink DS-CDMA Signals