Modified LTE system with low PAPR and BER

In this paper, we propose a high performance LTE system. The performance of the LTE system is enhanced in two stages. The first stage is the reduction of the High Peak to Average Power Ratio (PAPR) of OFDM signal. The second stage is the improvement of the channel estimation. The PAPR reduction is based on selected mapping, where trigonometric transformation with minimum PAPR is selected for each partitioned block. The channel is estimated via enhanced least square estimator by using wavelet-based de-noising method to reduce additive white Gaussian noise and inter-carrier interference (ICI). The simulation results, based on ITU pedestrian Channel model, show that the proposed modified OFDM can reduce the PAPR with ~3 dB compared to traditional OFDM and improved the bit error rate (BER) for the system.