Mu-Law companded PTS for PAPR reduction in OFDM systems

Anjaiah, Chidurala; Prasad, P Hari Krishna

doi:10.1109/icecct.2015.7226139

Cited by 5 publications

(1 citation statement)

References 16 publications

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“…Sravanti and Vasantha [69] combined Precoding technique and PTS technique to improve the PAPR reduction performance. On the other hand, the PTS technique also combined with distortion techniques, such as PTS-Clipping algorithm in [70], and PTS-companding algorithm in [71]. Also, the DFT-spread technique [72], the Discrete Hartley Transform (DHT)-spread technique [73] and single carrier frequency division multiplexing (SC-FDM) technique [74], [75] are utilized with OFDM for reducing the PAPR value effectively in an intensity modulation and direct detection (IM/DD) optical systems.…”

Section: Papr Reduction Techniquesmentioning

confidence: 99%

A Review of Partial Transmit Sequence for PAPR Reduction in the OFDM Systems

et al. 2019

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Orthogonal frequency division multiplexing (OFDM) is a superior technology for the high-speed data rate of wire-line and wireless communication systems. The OFDM has many advantages over other techniques such as its high capacity and immunity against multipath fading channels. However, one of the main drawbacks of the OFDM system is the high-peak-to-average power ratio (PAPR) that leads the system to produce in-band distortion and out-of-band radiation because of the non-linearity of the high-power amplifiers. Therefore, numerous techniques have been proposed to overcome the PAPR problem such as selective mapping, partial transmit sequence (PTS), clipping, and nonlinear companding. In this paper, the PTS technique was analytically reviewed as one of the important methods to reduce the high PAPR problem. The PAPR performance and the computational complexity level are discussed in terms of modifying the PTS technique in the frequency domain, time domain and modulation stage (inverse fast Fourier transform block). Moreover, the numerical statistic comparison of the current modified-PTS methods is introduced, and the criteria for selecting the suitable modified-PTS method in the OFDM system are also given. The simulation and the numerical calculations results show that the rows exchange-interleaving PTS scheme is the best method for reducing the PAPR value with low complexly in the frequency domain, and the cooperative PTS method is the best among the modulation stage methods, while the cyclic shift sequence PTS method achieves the superior performance in PAPR reduction and computational complexity for the time domain methods.

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Section: Papr Reduction Techniquesmentioning

confidence: 99%

A Review of Partial Transmit Sequence for PAPR Reduction in the OFDM Systems

et al. 2019

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Reduced Complexity Hybrid PAPR Reduction Schemes for Future Broadcasting Systems

Sravanti

Kamatham

Paidimarry

2019

Learning and Analytics in Intelligent Systems

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A PAPR correction scheme for LoRa self‐jamming waveforms

Demeslay,

Gautier,

Rostaing

et al. 2024

IET Communications

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A LoRa self‐jamming scheme that enables secure and covert communications by adding jamming symbols when transmitting is proposed. The scheme has been validated in simulations. The work is continued by evaluating the scheme on real‐world software defined radio (SDR) equipment. Experiments immediately showed that a demodulation is impossible as the received signal is highly distorted. This comes from the fact that adding symbols at transmission actually generates high peak‐to‐average power ratio (PAPR) preventing proper waveform generation by the equipment's hardware. This paper presents a PAPR correction scheme that modifies the waveform. The properties of this modified waveform are analysed and the performances are assessed in simulations with realistic time and frequency synchronization assumption. For the ideal 0 dB PAPR corrected output, the SER performances are close to that of a legacy LoRa communication, while preserving the physical layer security capabilities of the self‐jamming scheme. It is finally shown that our PAPR correction scheme effectively recovers the self‐jamming properties on SDR devices.

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Mu-Law companded PTS for PAPR reduction in OFDM systems

Cited by 5 publications

References 16 publications

A Review of Partial Transmit Sequence for PAPR Reduction in the OFDM Systems

A Review of Partial Transmit Sequence for PAPR Reduction in the OFDM Systems

Reduced Complexity Hybrid PAPR Reduction Schemes for Future Broadcasting Systems

A PAPR correction scheme for LoRa self‐jamming waveforms

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