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

delete2011-06-01
delete43
PRE
AI
J
Jihan Park *
D
Dongsoo Har
DOI:10.1109/LCOMM.2011.041411.101946delete
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Abstract

Abstract

En 中文
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.
Keywords:
PAPR
SLM
side information
phase sequence

Journal

IEEE Communications Letters cover
IEEE Communications Letters
IF:
4.4
Papers:
1.3W
Citations:
2.2W

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