NDLI: A new side-information free PTS scheme for PAPR reduction in OFDM systems

Content Provider	IEEE Xplore Digital Library
Author	Sheng-Ju Ku Chin-Liang Wang
Copyright Year	2012
Description	Author affiliation: Graduate Institute of Communication Engineering, Tatung University, Taipei, Taiwan 10452, Republic of China (Sheng-Ju Ku) \|\| Department of Electrical Engineering and Institute of Communications Engineering, National Tsing Hua University, Hsinchu, Taiwan 30013, Republic of China (Chin-Liang Wang)
Abstract	Partial transmit sequences (PTS) is an efficient technique to reduce the peak-to-average power ratio (PAPR) for orthogonal frequency division multiplexing (OFDM) systems. One main drawback of the conventional PTS method is the need of side information. When the side information is lost, the received data cannot be decoded correctly by the receiver. In this paper, we propose a new side-information free PTS scheme, where a difference vector along with an input data block is generated by using an extended constellation. After dividing the difference vector into some disjoint subblocks, the inverse fast Fourier transform of the input data block and that of each subblock of the difference vector are combined optimally to form a low-PAPR OFDM signal for transmission. Simulation results show that the proposed PTS scheme can achieve better PAPR reduction performance than the conventional PTS scheme, but it has lower computational complexity and does not need side information.
Starting Page	108
Ending Page	112
File Size	260510
Page Count	5
File Format	PDF
ISBN	9781467314299
ISSN	21604886
e-ISBN	9781467314305
DOI	10.1109/WiMOB.2012.6379061
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-08
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Constellation diagram Constellation extension Partial transmit sequences Peak to average power ratio inverse fast Fourier transform (IFFT) Vectors peak-to-average power ratio (PAPR) orthogonal frequency division multiplexing (OFDM) Computational complexity partial transmit sequences (PTS)
Content Type	Text
Resource Type	Article

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