Turbo Coded OFDM for Reducing PAPR and Error Rates

Authors:
Yung-Chih Tsai;Shang-Kang Deng;Kuan-Cheng Chen;Mao-Chao Lin
Affiliations:
Nat. Taiwan Univ., Taipei;-;-;-
Venue:
IEEE Transactions on Wireless Communications
Year:
2008

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PAPR reduction for LDPC coded OFDM systems using binary masks and optimal LLR estimation

Signal Processing

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Abstract

A selective-mapping (SLM) scheme which does not require the transmission of side information and can reduce the peak to average power ratio (PAPR) in turbo coded orthogonal frequency-division multiplexing (OFDM) systems is proposed. The candidates of the proposed SLM are respectively generated by a turbo encoder using various interleavers. The waiver of side information can avoid the degradation of error rate performance which results from the incorrect recovery of side information at receiver in the conventional SLM OFDM system.