NDLI: Selected mapping and partial transmit sequence schemes to reduce PAPR in OFDM systems

Content Provider	IEEE Xplore Digital Library
Author	Di-xiao Wu
Copyright Year	2011
Description	Author affiliation: Department of Weaponry Engineering, Naval University of Engineering, Wuhan, China (Di-xiao Wu)
Abstract	Orthogonal Frequency Division Multiplexing (OFDM) has been currently under intense research for broadband wireless transmission due to its robustness against multi-path fading. However, OFDM signals are characterized by large peak-to-average power ratios (PAPR), which can reduce the system efficiency. To overcome this problem, in this paper, based on the definition of the PAPR in OFDM systems, we will mainly investigate the PAPR reduction performance with two different PAPR reduction methods: the selective mapping (SLM) and partial transmit sequence (PTS). A comprehensive analysis and comparison are conducted in terms of all possible influencing factors and PAPR reduction performance, respectively. Some research findings are obtained based on the simulation results. The results verify that PTS method provides a better PAPR reduction performance compared to SLM method and the probability of high PAPR with increasing the number of sub-blocks in PTS technique decreases obviously, compared to the original OFDM signal. In addition, SLM algorithm is more suitable if the system can tolerate more redundant information; otherwise, PTS algorithm is more acceptable when complexity becomes the first considering factor.
Starting Page	1
Ending Page	5
File Size	1113152
Page Count	5
File Format	PDF
ISBN	9781612848792
e-ISBN	9781612848815
DOI	10.1109/IASP.2011.6108986
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-21
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	peak-to-average power ratios Phase shift keying partial transmit sequence Partial transmit sequences OFDM Peak to average power ratio Time domain analysis Vectors selective mapping Complexity theory
Content Type	Text
Resource Type	Article

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