Low Complexity Data Decoding for SLM-Based OFDM Systems without Side Information

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Selected mapping (SLM) scheme is a well-known technique for peak-to-average power ratio (PAPR) reduction in orthogonal frequency division multiplexing (OFDM) systems. To recover data at receiver, the SLM scheme requires transmission of the selected phase sequence index, e. g., side information (SI). In this letter, a new pilot phase sequence enabling data recovery without SI and a low complexity decoding scheme are proposed. The BER performance of the proposed scheme is approximately the same in comparison with the SLM scheme with SI and considerably better than that of the Maximum Likelihood (ML) decoding scheme. In addition, the computational complexity of the proposed decoding scheme is much lower, as compared to the ML decoding scheme.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2011-06
Language
English
Article Type
Article
Keywords

AVERAGE POWER RATIO; REDUCTION; SIGNALS; PTS

Citation

IEEE COMMUNICATIONS LETTERS, v.15, no.6, pp.611 - 613

ISSN
1089-7798
DOI
10.1109/LCOMM.2011.041411.101946
URI
http://hdl.handle.net/10203/103677
Appears in Collection
GT-Journal Papers(저널논문)
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