TY - GEN
T1 - A Partial Scrambling Overlapped Selected Mapping PAPR Reduction Scheme for OFDM/OQAM Systems
AU - Kageyama, Tomoya
AU - Muta, Osamu
N1 - Funding Information:
ACKNOWLEDGMENT This research was partially supported by the JSPS KAK-ENHI (JP17K06427, JP17J04710).
Publisher Copyright:
© 2019 IEEE.
PY - 2019/12
Y1 - 2019/12
N2 - As a spectrum efficient multi-carrier modulation scheme, filter-bank based orthogonal frequency division multiplexing techniques using offset quadrature amplitude modulation (OFDM/OQAM) are investigated for future wireless communication systems, where a low-sidelobe spectrum is achieved by band-limiting each subcarrier while keeping their orthogonality. One of the technical issues in OFDM/OQAM is the suppression of the peak-to-average power ratio (PAPR). Since existing PAPR reduction schemes for traditional OFDM are not straightforwardly applicable to OFDM/OQAM systems, PAPR suppression for OFDM/OQAM is still a challenging issue. This paper proposes a partial scrambling overlapped selected mapping (PS-OSLM) technique for OFDM/OQAM systems, where a partial scrambling technique is applied to an overlapped SLM scheme which selects the best candidate sequence among possible overlapped candidate sequences so as to minimize the PAPR. It is verified by simulation that the proposed PS-OSLM effectively reduce PAPR of OFDM/OQAM signal without explicit side information while improving bit error rate (BER) performance compared with conventional schemes.
AB - As a spectrum efficient multi-carrier modulation scheme, filter-bank based orthogonal frequency division multiplexing techniques using offset quadrature amplitude modulation (OFDM/OQAM) are investigated for future wireless communication systems, where a low-sidelobe spectrum is achieved by band-limiting each subcarrier while keeping their orthogonality. One of the technical issues in OFDM/OQAM is the suppression of the peak-to-average power ratio (PAPR). Since existing PAPR reduction schemes for traditional OFDM are not straightforwardly applicable to OFDM/OQAM systems, PAPR suppression for OFDM/OQAM is still a challenging issue. This paper proposes a partial scrambling overlapped selected mapping (PS-OSLM) technique for OFDM/OQAM systems, where a partial scrambling technique is applied to an overlapped SLM scheme which selects the best candidate sequence among possible overlapped candidate sequences so as to minimize the PAPR. It is verified by simulation that the proposed PS-OSLM effectively reduce PAPR of OFDM/OQAM signal without explicit side information while improving bit error rate (BER) performance compared with conventional schemes.
UR - http://www.scopus.com/inward/record.url?scp=85083663481&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85083663481&partnerID=8YFLogxK
U2 - 10.1109/JAC-ECC48896.2019.9051096
DO - 10.1109/JAC-ECC48896.2019.9051096
M3 - Conference contribution
AN - SCOPUS:85083663481
T3 - Proceedings of the International Japan-Africa Conference on Electronics, Communications and Computations, JAC-ECC 2019
SP - 37
EP - 40
BT - Proceedings of the International Japan-Africa Conference on Electronics, Communications and Computations, JAC-ECC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th International Japan-Africa Conference on Electronics, Communications and Computations, JAC-ECC 2019
Y2 - 15 December 2019 through 16 December 2019
ER -