TY - GEN
T1 - PA-Efficiency-Aware Hybrid PAPR Reduction for F-OFDM Systems with ICA Based Blind Equalization
AU - Lin, Han
AU - Zhu, Xu
AU - Jiang, Yufei
AU - Liu, Yujie
AU - Zhuang, Yuan
AU - Gao, Lin
N1 - Funding Information:
This work was supported in part by the "Liverpool 5G" Project, Department for Digital, Culture, Media and Sport (DCMS), UK, the Science and Technology Innovation Commission of ShenZhen under Project No. JCYJ20170307151258279 and the Natural Science Foundation of Guangdong Province under grant No. 2018A030313344.
Funding Information:
This work was supported in part by the “Liverpool 5G” Project, Department for Digital, Culture, Media and Sport (DCMS), UK, the Science and Technology Innovation Commission of ShenZhen under Project No. J-CYJ20170307151258279 and the Natural Science Foundation of Guangdong Province under grant No. 2018A030313344.
Publisher Copyright:
© 2019 IEEE.
PY - 2019/4
Y1 - 2019/4
N2 - Filtered-orthogonal frequency division multiplexing (F-OFDM) is a promising candidate waveform for the fifth generation (5G) wireless communications because of its high flexibility and low out-of-band emission (OOBE). However, it suffers from dramatic peak-to-average-power ratio (PAPR), which is higher than that of OFDM and results in the power amplifier (PA) not working in the high-efficiency region. We propose a hybrid PAPR reduction scheme including precoding, time-domain selected mapping (TSLM) and companding techniques, for F-OFDM systems with independent component analysis (ICA) based blind channel equalization, which can achieve significant PAPR reduction over the previous work. Also, this is the first work to reduce PAPR while enabling the PA to work with the highest possible efficiency. The reciprocal of the hybrid PAPR reduction is embedded in the ambiguity elimination process of ICA, and therefore does not require any dedicated side information from the transmitter or any exclusive signal processing at the receiver, leading to a much higher spectral efficiency (SE) and lower computational complexity than the previous work. The bit error rate (BER) performance of the system with the proposed hybrid PAPR reduction scheme is shown to be close to the ideal case with perfect channel state information (CSI), while no side information and training sequence are required for PAPR reduction and channel estimation, thanks to the effectiveness of the ICA based blind channel equalization.
AB - Filtered-orthogonal frequency division multiplexing (F-OFDM) is a promising candidate waveform for the fifth generation (5G) wireless communications because of its high flexibility and low out-of-band emission (OOBE). However, it suffers from dramatic peak-to-average-power ratio (PAPR), which is higher than that of OFDM and results in the power amplifier (PA) not working in the high-efficiency region. We propose a hybrid PAPR reduction scheme including precoding, time-domain selected mapping (TSLM) and companding techniques, for F-OFDM systems with independent component analysis (ICA) based blind channel equalization, which can achieve significant PAPR reduction over the previous work. Also, this is the first work to reduce PAPR while enabling the PA to work with the highest possible efficiency. The reciprocal of the hybrid PAPR reduction is embedded in the ambiguity elimination process of ICA, and therefore does not require any dedicated side information from the transmitter or any exclusive signal processing at the receiver, leading to a much higher spectral efficiency (SE) and lower computational complexity than the previous work. The bit error rate (BER) performance of the system with the proposed hybrid PAPR reduction scheme is shown to be close to the ideal case with perfect channel state information (CSI), while no side information and training sequence are required for PAPR reduction and channel estimation, thanks to the effectiveness of the ICA based blind channel equalization.
KW - Filtered-orthogonal frequency division multiplexing (F-OFDM)
KW - independent component analysis (ICA)
KW - peak-to-average-power ratio (PAPR)
KW - power amplifier (PA)
UR - http://www.scopus.com/inward/record.url?scp=85074762323&partnerID=8YFLogxK
U2 - 10.1109/WCNC.2019.8885953
DO - 10.1109/WCNC.2019.8885953
M3 - Conference Proceeding
AN - SCOPUS:85074762323
T3 - IEEE Wireless Communications and Networking Conference, WCNC
BT - 2019 IEEE Wireless Communications and Networking Conference, WCNC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE Wireless Communications and Networking Conference, WCNC 2019
Y2 - 15 April 2019 through 19 April 2019
ER -