An Optimal Low Complexity PAPR Reduction Technique for Next Generation OFDM Systems
Ahmad M. Rateb,Mohamed Labana +1 more
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TLDR
This paper proposes a low-complexity technique for PAPR reduction based on linear scaling of a portion of signal coefficients by an optimal factor that has a very good potential for practical application in current and future OFDM-based systems, especially those which employ a very large number of subcarriers.Abstract:
Orthogonal frequency division multiplexing (OFDM) is an efficient multi-carrier modulation technique that underlies most of the current and probably future high-speed wireless communication systems. However, the OFDM waveform is characterized by a high peak-to-average power ratio (PAPR), especially when a large number of subcarriers are used. A high PAPR is a major waveform defect since it leads to non-linear distortion when passing through the transmitter’s power amplifier. Most of the PAPR reduction techniques found in the literature reduce the PAPR mainly at the cost of either excessive computational complexity or degrading the transmission bit error rate (BER). We propose a low-complexity technique for PAPR reduction based on linear scaling of a portion of signal coefficients by an optimal factor. This paper is backed up by the extensive analysis of various performance metrics, which leads to optimal choices of key parameters and hence maximum achievable gains. The analytic and simulated results show that the proposed technique is capable of reducing the PAPR effectively with negligible effect on BER in return for a slight reduction in data rate. For example, for 1024 subcarriers, the PAPR can be reduced from 13 dB to below 7.4 or 6.9 dB, in return for only 1% or 2% reduction in data rate, respectively. In addition, the achievable PAPR varies very slightly in response to increasing the number of subcarriers. This offers a highly competitive and flexible tradeoff compared with those provided by current techniques found in the literature. Therefore, this technique has a very good potential for practical application in current and future OFDM-based systems, especially those which employ a very large number of subcarriers, such as LTE, DVB-T2, and 5G systems.read more
Citations
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Journal ArticleDOI
An Enhanced Iterative Clipping and Filtering Method Using Time-Domain Kernel Matrix for PAPR Reduction in OFDM Systems
TL;DR: An efficient P APR reduction method that uses the time-domain kernel matrix to generate the PAPR-reduction signal and employs the curve fitting approach to optimize the corresponding scaling factors is developed.
Journal ArticleDOI
A comprehensive study of PAPR reduction techniques: design of DSLM-CT joint reduction technique for advanced waveform
Arun Kumar,Manisha Gupta +1 more
TL;DR: This correspondence discussed advanced waveform technique non-orthogonal multiple access (NOMA) and filter bank multicarrier (FBMC) for 5G network and proposed a hybrid strategy (DSLM-CT) based on discrete selective mapping and circular transformation technique which reduces the power consumption of solid state power amplifier.
Journal ArticleDOI
Bit Error Rate Analysis of NOMA-OFDM in 5G Systems With Non-Linear HPA With Memory
TL;DR: In this article, an analytical evaluation of the bit error rate (BER) of NOMA-OFDM systems in the presence of a high power amplifier (HPA) with memory is presented.
Journal ArticleDOI
Novel PAPR reduction scheme based on continuous nonlinear piecewise companding transform for OFDM systems
TL;DR: A novel efficient continuous piecewise nonlinear companding scheme is proposed for reducing the peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) systems and results indicate the superiority of the proposed scheme over existing companding schemes.
References
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Millimeter Wave Mobile Communications for 5G Cellular: It Will Work!
Theodore S. Rappaport,Shu Sun,Rimma Mayzus,Hang Zhao,Yaniv Azar,Kevin H. Wang,George N. Wong,Jocelyn K. Schulz,Mathew K. Samimi,Felix Gutierrez +9 more
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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.