Performance Analysis of DFT-OFDM, DCT-OFDM, and DWT-OFDM Systems in AWGN Channel
ICWMC '08 Proceedings of the 2008 The Fourth International Conference on Wireless and Mobile Communications
Editorial: OFDMA architectures, protocols, and applications
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An exhaustive entropy based SLM method for PAPR reduction of OFDM systems
CHINACOM '11 Proceedings of the 2011 6th International ICST Conference on Communications and Networking in China
A novel IQ imbalance compensation scheme for the reception of OFDM signals
IEEE Transactions on Consumer Electronics
Complement block coding for reduction in peak-to-average power ratio of OFDM signals
IEEE Communications Magazine
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High Peak to Average Power Ratio (PAPR) is still one of the most important challenges in Orthogonal Frequency Division Multiplexing (OFDM) system. In this paper, we proposed a hybrid algorithm that is based selected mapping (SLM) technique for PAPR reduction in OFDM system. This algorithm incorporates the transformations into the SLM technique. Rather than using only Discrete Fourier Transform (DFT) in the traditional SLM technique, we propose to use Discrete Cosine Transform (DCT) and Discrete Sine Transform (DST) as well as DFT in the selection process, to get the lowest PAPR. The simulation results, based on simplified long term evaluation (LTE) system, show that the proposal technique can reduce the PAPR to about 3.2dB compared to traditional OFDM for N=512 at clipping probability of 10−3 with low additive complexity.