PAPR reduction for FBMC-OQAM systems using P-PTS scheme

doi:10.1016/S1005-8885(15)60698-7

Acta Metallurgica Sinica(English letters) ›› 2015, Vol. 22 ›› Issue (6): 78-85.doi: 10.1016/S1005-8885(15)60698-7

PAPR reduction for FBMC-OQAM systems using P-PTS scheme

刘凯明¹,侯俊单¹,张鹏¹,刘元安²

School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

收稿日期:2015-07-07 修回日期:2015-10-19 出版日期:2015-12-31 发布日期:2015-12-30
通讯作者: 刘凯明 E-mail:kmliu@bupt.edu.cn
基金资助:
This work was supported by the Beijing Higher Education Young Elite Teacher Project (YETP0440), the National Natural Science Foundation of China (61272518, 61302083)

PAPR reduction for FBMC-OQAM systems using P-PTS scheme

Liu Kaiming¹, Hou Jundan¹,Zhang Peng¹, Liu Yuan’an²

School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2015-07-07 Revised:2015-10-19 Online:2015-12-31 Published:2015-12-30
Contact: Kaiming-Ming LIU E-mail:kmliu@bupt.edu.cn
Supported by:
This work was supported by the Beijing Higher Education Young Elite Teacher Project (YETP0440), the National Natural Science Foundation of China (61272518, 61302083)

摘要/Abstract

摘要： Filter bank multi-carrier (FBMC) with offset quadrature amplitude modulation (OQAM) has been regarded as one of the candidates for next generation broadband wireless communication systems. Being a multi-carrier technique, FBMC suffers from the inherent drawback of high peak-to-average power ratio (PAPR). And it has been turned out that conventional PAPR reduction schemes for orthogonal frequency division multiplexing (OFDM) systems are ineffective for FBMC-OQAM systems, due to the overlapping structure of FBMC-OQAM signals. In this paper, we propose an efficient PAPR reduction scheme based on a two-step optimization structure, named pretreated partial transmit sequence (P-PTS). The first step uses a multiple overlapping symbols joint optimization scheme that the phase rotation sequences for current symbol is determined and optimized according to previous overlapped symbols. And in the second step, it employs a novel segment PAPR reduction scheme based on PTS technique. Simulation results indicate that the proposed P-PTS scheme can achieve better PAPR reduction performance than conventional methods with lower computational complexity and the complexity can be traded off more flexibly with PAPR reduction performance.

关键词: FBMC-OQAM, PAPR, P-PTS

Abstract: Filter bank multi-carrier (FBMC) with offset quadrature amplitude modulation (OQAM) has been regarded as one of the candidates for next generation broadband wireless communication systems. Being a multi-carrier technique, FBMC suffers from the inherent drawback of high peak-to-average power ratio (PAPR). And it has been turned out that conventional PAPR reduction schemes for orthogonal frequency division multiplexing (OFDM) systems are ineffective for FBMC-OQAM systems, due to the overlapping structure of FBMC-OQAM signals. In this paper, we propose an efficient PAPR reduction scheme based on a two-step optimization structure, named pretreated partial transmit sequence (P-PTS). The first step uses a multiple overlapping symbols joint optimization scheme that the phase rotation sequences for current symbol is determined and optimized according to previous overlapped symbols. And in the second step, it employs a novel segment PAPR reduction scheme based on PTS technique. Simulation results indicate that the proposed P-PTS scheme can achieve better PAPR reduction performance than conventional methods with lower computational complexity and the complexity can be traded off more flexibly with PAPR reduction performance.

Key words: FBMC-OQAM, PAPR, P-PTS

Liu Kaiming, Hou Jundan, Zhang Peng, Liu Yuan’an. PAPR reduction for FBMC-OQAM systems using P-PTS scheme [J]. Acta Metallurgica Sinica(English letters), 2015, 22(6): 78-85.

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PAPR reduction for FBMC-OQAM systems using P-PTS scheme

PAPR reduction for FBMC-OQAM systems using P-PTS scheme

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