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Modified selected mapping technique for PAPR reduction of coded OFDM signal

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2 Author(s)
Seung Hee Han ; Sch. of Electr. Eng. & Comput. Sci., Seoul Nat. Univ., South Korea ; Jae Hong Lee

High peak-to-average power ratio (PAPR) of the transmitted signal is a major drawback of orthogonal frequency division multiplexing (OFDM). In this paper, we propose a modified selective mapping (SLM) technique for PAPR reduction of coded OFDM signal. In this technique, we embed the phase sequence, which is used to lower the PAPR of the data block, in the check symbols of the coded OFDM data block. It is shown that we can achieve both PAPR reduction from the SLM technique as well as error performance improvement from the channel coding with no loss in data rate from the transmission of side information. In addition, approximate expression for the complementary cumulative distribution function (CCDF) of the PAPR of the modified SLM technique is derived and compared with the simulation results.

Published in:

IEEE Transactions on Broadcasting  (Volume:50 ,  Issue: 3 )