A Low-Complexity SLM Scheme Using Additive Mapping Sequences for PAPR Reduction of OFDM Signals

The selected mapping (SLM) scheme is one of the well-known peak-to-average power ratio (PAPR) reduction schemes for orthogonal frequency division multiplexing (OFDM) systems. A number of low-complexity SLM schemes have been proposed but most of them reduce the computational complexity at the cost of...

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Bibliographic Details
Published in:IEEE transactions on broadcasting 2011-12, Vol.57 (4), p.866-875
Main Authors: JEON, Hyun-Bae, NO, Jong-Seon, SHIN, Dong-Joon
Format: Article
Language:English
Subjects:
Additive mapping sequences
Applied sciences
Bit error rate
Coding, codes
Computational complexity
Exact sciences and technology
Information, signal and communications theory
low complexity
Modulation, demodulation
Multiplexing
OFDM
orthogonal frequency division multiplexing (OFDM)
Peak to average power ratio
peak-to-average power ratio (PAPR)
Quadrature amplitude modulation
selected mapping (SLM)
Signal and communications theory
Studies
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
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Summary:The selected mapping (SLM) scheme is one of the well-known peak-to-average power ratio (PAPR) reduction schemes for orthogonal frequency division multiplexing (OFDM) systems. A number of low-complexity SLM schemes have been proposed but most of them reduce the computational complexity at the cost of bit error rate (BER) or PAPR reduction performance degradation. In this paper, a new low-complexity SLM scheme is proposed, which generates alternative signal sequences by adding mapping signal sequences to an OFDM signal sequence. The proposed scheme considerably reduces the computational complexity without sacrificing BER and PAPR reduction performance only by requiring additional memory to save the additive mapping signal sequences, especially for the OFDM system with quadrature amplitude modulation (QAM). Similarly, a low-complexity SLM scheme is proposed for multi-input multi-output (MIMO) OFDM system with space-frequency block code (SFBC).
ISSN:0018-9316
1557-9611
DOI:10.1109/TBC.2011.2151570