Open AccessReducing the PAPR of OFDM Systems by Random Variable Transformation
Author(s) -
Taher Montadar Abas,
Singh Mandeep Jit,
Ismail Mahamod Bin,
Samad Salina Abdul,
Islam Mohammad Tariqul
Publication year - 2013
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.13.0212.0552
Subject(s) - orthogonal frequency division multiplexing , transformation (genetics) , reduction (mathematics) , bit error rate , constellation , computer science , algorithm , power (physics) , variable (mathematics) , electronic engineering , mathematics , telecommunications , engineering , decoding methods , mathematical analysis , biochemistry , channel (broadcasting) , chemistry , geometry , physics , quantum mechanics , astronomy , gene
Peak power reduction techniques in orthogonal frequency division multiplexing (OFDM) has been an important subject for many researchers for over 20 years. In this letter, we propose a side‐information‐free technique that is based on the concept of random variable (RV) transformation. The suggested method transforms RVs into other RVs, aiming to reshape the constellation that will consequently produce OFDM symbols with a reduced peak‐to‐average power ratio. The proposed method has no limitation on the mapping type or the mapping order and has no significant effect on the bit error rate performance compared to other methods presented in the literature. Additionally, the computational complexity does not increase.