Journal ArticleDOI
Reduction PAPR of OFDM Signals by Combining SLM with DCT Transform
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TLDR
Simulation results show that the proposed schemes can obtain significant PAPR reduction performance with that of ordinary SLM techniques.Abstract:
One of main disadvantage of OFDM is high peak-to-average power ratio (PAPR). In this paper, two effective PAPR reduction schemes are proposed. These techniques combine DCT and SLM techniques. The scheme 1 is composed of the DCT followed by SLM technique, and the DCT is used followed by conventional SLM in proposed scheme 2. Simulation results show that the proposed schemes can obtain significant PAPR reduction performance with that of ordinary SLM techniques.read more
Citations
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Journal ArticleDOI
PAPR Reduction of OFDM Signal via Custom Conic Optimized Iterative Adaptive Clipping and Filtering
V. Nandalal,S. Sophia +1 more
TL;DR: An efficient custom optimized adaptive clipping and filtering technique is proposed that shows a greater reduction in PAPR in lesser iterations with reduced out-of-band distortion and bit error rate when compared over classical clipping techniques.
Journal Article
SLM Using Riemann Sequence Combined with DCT Transform for PAPR Reduction in OFDM Communication Systems
TL;DR: An effective reduction scheme that combi nes DCT and SLM techniques using the Riemann matrix to obtain phase se quences for the SLM technique and simulation results show PAPR can be greatly reduced by applying the proposed scheme.
Comparative study between Selection Mapping Technique (SLM) and Partial Transmission Sequence (PTS) for PAPR reduction in OFDM signals
TL;DR: In this article, two techniques for reducing the peak-to-average-power ratio (PAPR) of OFDM systems, selected mapping (SLM) and partial transmission sequence (PTS), are proposed.
Journal ArticleDOI
Efficient PAPR Reduction in DCT-SCFDMA System Based on Absolute Exponential Companding Technique with Pulse Shaping
TL;DR: A novel joint scheme of PAPR reduction method is proposed and analyzed based on pulse shaping and absolute exponential companding (AEXP) technique and achieves significant improvements over the existing standard pulse shaping methods when used alone in DCT-SCFDMA system as far as the lowest PAPr is concerned.
Journal ArticleDOI
GCD Matrix based PAPR Reduction Technique for OFDM System
TL;DR: In this paper, the effects of PAPR on HPA and its reduction technique based on GCD matrix In Selected Mapping (SLM) method are analyzed and the simulation results show that the new phase sequence based SLM method has good performance in power ratio reduction.
References
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Journal ArticleDOI
Discrete Cosine Transform
TL;DR: In this article, a discrete cosine transform (DCT) is defined and an algorithm to compute it using the fast Fourier transform is developed, which can be used in the area of digital processing for the purposes of pattern recognition and Wiener filtering.
Journal ArticleDOI
An overview of peak-to-average power ratio reduction techniques for multicarrier transmission
Seung Hee Han,Jae Hong Lee +1 more
TL;DR: Some of the important PAPR reduction techniques for multicarrier transmission including amplitude clipping and filtering, coding, partial transmit sequence, selected mapping, interleaving, tone reservation, tone injection, and active constellation extension are described.
Journal ArticleDOI
Reducing the peak-to-average power ratio of multicarrier modulation by selected mapping
TL;DR: A method for the reduction of peak-to-average transmit power ratio of multicarrier modulation systems, called selected mapping, is presented, which is appropriate for a wide range of applications.
Journal ArticleDOI
An Overview: Peak-to-Average Power Ratio Reduction Techniques for OFDM Signals
Tao Jiang,Yiyan Wu +1 more
TL;DR: Different OFDM PAPR reduction techniques are reviewed and analysis, based on computational complexity, bandwidth expansion, spectral spillage and performance, for multiuser OFDM broadband communication systems.
Journal ArticleDOI
OFDM with reduced peak-to-average power ratio by optimum combination of partial transmit sequences
Stefan Müller,Johannes B. Huber +1 more
TL;DR: In this paper, the authors proposed a very effective and flexible peak power reduction scheme for orthogonal frequency division multiplexing (OFDM) with almost vanishing redundancy, which works with arbitrary numbers of subcarriers and unconstrained signal sets.