N-PTS scheme with low complexity for PAPR reduction

The Journal of Engineering

Shanlin Wei¹  Ying Shen² 

[1] School of Physics and Telecommunication Engineering, ZhouKou Normal University, Wenchang Road, ZhouKou 466000, People's Republic of China

关键词: OFDM system;    low-complexity PTS;    circular signals;    computational complexity;    peak-to-average power ratio;    N-PTS scheme;    time-domain signals;    PAPR reduction;    partial transmit sequence;    inverse fast Fourier transform;   

DOI  :  10.1049/joe.2016.0270

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

Partial transmit sequence (PTS) is a promising technology for peak-to-average power ratio (PAPR) reduction because it introduces no distortion. However, the high computational complexity is the main drawback of PTS scheme. A low-complexity PTS scheme, called N-PTS, is proposed for PAPR reduction. By constructing some sequences, the time-domain signals are obtained by combining the original signal with two circular signals. Thus, only one inverse fast Fourier transform block is required to implement. Analyses and simulation results show that the N-PTS scheme achieves extremely low computational complexity while sacrificing a little bit of performance compared with the conventional PTS.

【 授权许可】

CC BY