Open AccessPartial Shift Mapping for PAPR Reduction with Low Complexity in OFDM Systems
Author(s) -
Ouyang Xing,
Jin Jiyu,
Jin Guiyue,
Wang Zhisen
Publication year - 2012
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.12.0211.0355
Subject(s) - reduction (mathematics) , orthogonal frequency division multiplexing , transmission (telecommunications) , fast fourier transform , power (physics) , set (abstract data type) , algorithm , multiplication (music) , computer science , discrete fourier transform (general) , electronic engineering , mathematics , computational complexity theory , fourier transform , telecommunications , engineering , fourier analysis , short time fourier transform , channel (broadcasting) , mathematical analysis , physics , geometry , quantum mechanics , combinatorics , programming language
The high peak‐to‐average power is one of the main drawbacks in OFDM systems. This letter proposes a partial shift mapping (PSM) method for peak power reduction in OFDM systems. By utilizing the properties of the discrete Fourier transform, the proposed method generates a set of candidate signals without additional complex multiplication and selects the one with minimum peak power for transmission. Analyses and simulations confirm that the PSM method achieves satisfactory peak power reduction performance and low complexity compared with other kindred methods, for example, selected mapping and partial transmit sequences.