EURASIP Journal on Wireless Communications and Networking - Intelligent Systems for Future Generation Wireless Networks
IEEE Transactions on Communications
A low-complexity SLM PAPR reduction scheme for interleaved OFDMA uplink
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Novel low-complexity SLM schemes for PAPR reduction in OFDM systems
IEEE Transactions on Signal Processing
A reduced-complexity PTS-based PAPR reduction scheme for OFDM systems
IEEE Transactions on Wireless Communications
Design and analysis of side information embedded PTS scheme in the OFDM communication system
WASA'06 Proceedings of the First international conference on Wireless Algorithms, Systems, and Applications
Selected mapping with symbol re-mapping for OFDM/TDM using MMSE-FDE
Wireless Communications & Mobile Computing
On the contribution of power variance in PAPR reduction for OFDM signals
International Journal of Autonomous and Adaptive Communications Systems
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Orthogonal frequency-division multiplexing (OFDM) is an attractive transmission technique for high-bit-rate communication systems. One major drawback of OFDM is the high peak-to-average power ratio (PAPR) of the transmitter's output signal. The selected mapping (SLM) approach provides good performance for PAPR reduction, but it requires a bank of inverse fast Fourier transforms (IFFTs) to generate a set of candidate transmission signals, and this requirement usually results in high computational complexity. In this paper, we propose a kind of low-complexity conversions to replace the IFFT blocks in the conventional SLM method. Based on the proposed conversions, we develop two novel SLM schemes with much lower complexity than the conventional one; the first method uses only one IFFT block to generate the set of candidate signals, while the second one uses two IFFT blocks. Computer simulation results show that, as compared to the conventional SLM scheme, the first proposed approach has slightly worse PAPR reduction performance and the second proposed one reaches almost the same PAPR reduction performance.