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- Title
Low-complexity peak-to-average power ratio reduction method for orthogonal frequency-division multiplexing communications.
- Authors
Yuewen Wang; Akansu, Ali N.
- Abstract
The high peak-to-average power ratio (PAPR) of the transmitted signal is a major drawback of multicarrier transmission such as orthogonal frequency-division multiplexing OFDM. A plethora of PAPR reduction techniques has been reported in the literature. Some of the techniques modify the phase and/or amplitude of symbols in the original symbol alphabet (SA) such as selected mapping and partial transmit sequences techniques. However, such methods have shortcomings of a heavy computational burden caused by required multiple inverse fast-Fourier transform (IFFT) operations and bit error rate performance degradation due to side information (SI). In this study, a low-complexity PAPR reduction framework is proposed to jointly modify phase and amplitude values of the original symbols in the alphabet. This framework utilises only one IFFT/FFT operator pair for transmultiplexing of symbols without any SI. The merit of the proposed method to design a SA modifier matrix (SAM) for PAPR reduction is shown through performance comparisons for the application scenarios presented in this study.
- Subjects
ORTHOGONAL frequency division multiplexing; BROADBAND communication systems; FOURIER transforms; TRANSMULTIPLEXING; SIGNS &; symbols; ALPHABET
- Publication
IET Communications (Wiley-Blackwell), 2015, Vol 9, Issue 17, p2153
- ISSN
1751-8628
- Publication type
Article
- DOI
10.1049/iet-com.2015.0194