Journal
IEEE TRANSACTIONS ON BROADCASTING
Volume 57, Issue 4, Pages 902-906Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TBC.2011.2169622
Keywords
Clipping control; least squares approximation; OFDM; peak-to-average power ratio (PAPR); tone reservation
Funding
- National Science Foundation of China [61172052, 60872008]
- Program for New Century Excellent Talents in University of China [NCET-08-0217]
- Ministry of Education of China [200804871142]
- Science Found for Distinguished Young Scholars of Hubei in China [2010CDA083]
- SRF for ROCS, SEM
- National and Major Project [2010ZX03006-002]
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In this letter, an improved tone reservation method, which is based on the least squares approximation, is proposed to reduce the peak-to-average-power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) systems. Compared with the clipping control method, the proposed scheme can generate the optimal peak-canceling signals with fast convergence. Simulation results show that the proposed scheme only needs two iterations at most to achieve almost the same PAPR reduction as that of the clipping control method.
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