A Low Complexity PAPR Reduction Architecture for OFDM-DSCK Communication System

Mobini, Majid; Zahabi, Mohammad Reza

doi:10.1007/s11277-019-06355-5

Cited by 3 publications

(2 citation statements)

References 32 publications

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“…they [21] presented a combined PAPR reduction technique by using Riemann SLM and DCT. Mobini and Zahabi [22] presented a merit factor SLM technique to improve the PAPR reduction as compared with the conventional SLM technique. Different companding techniques were investigated, such as hyperbolic, 𝜇-Law, and 𝐴-Law, which were compared with the palm clipping technique to study the effects of these techniques on the PAPR of the OFDM-DCSK system and the BER performance [23].…”

Section: Introductionmentioning

confidence: 99%

Enhanced SLM based OFDM-DCSK communication system for PAPR reduction

Abdulridha

Hasan

2022

Bulletin EEI

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In this research, a selective mapping (SLM) technique using the Walsh Hadamard (WH) matrix, the Riemann matrix, and the new enhanced Riemann matrix were introduced to reduce the peak to average power ratio (PAPR) of orthogonal frequency division multiplexing based differential chaos shift keying (OFDM-DCSK). Using a new algorithm to reduce the size of the Riemann matrix, which in turn enhances the computational complexity of the SLM system without affecting the performance of PAPR in the main method. The simulation results show that the SLM technique using the Riemann matrix gives better PAPR performance than WH and conventional techniques by gaining about (6.3, 6.15) dB, respectively, for complementary cumulative distribution function (CCDF)=10-3 and the number of candidates U=16. Also, the results show that the SLM technique based enhanced Riemann matrix gives a reduction in computational complexity by reducing the number of candidates U to 4, while maintaining the same PAPR performance.

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Section: Introductionmentioning

confidence: 99%

Enhanced SLM based OFDM-DCSK communication system for PAPR reduction

Abdulridha

Hasan

2022

Bulletin EEI

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“…Clipping [16], companding [17], selective mapping (SLM) [18], partial transmit sequence (PTS) [19], and hybrid techniques [20], [21] are proposed to overcome the problem of high PAPR in OFDM system. In this paper, palm clipping, companding, and hybrid approach techniques are utilized to reduce the PAPR in the OFDM-DCSK system and compared with carrier interferometry spreading codes technique [22] and merit factor SLM technique [23]. The rest of the paper is arranged as follows: The proposed OFDM-DCSK system model is presented in section 2.…”

Section: Introductionmentioning

confidence: 99%

Hybrid clipping and companding techniques based peak to average power ratio reduction in orthogonal frequency division multiplexing based differential chaos shift keying system

Alqassab

Hasan

2022

IJECE

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In this paper, a hybrid approach using clipping and companding techniques is introduced to reduce the peak to average power ratio (PAPR) of orthogonal frequency division multiplexing based differential chaos shift keying (OFDM-DCSK), which is the major drawback of the OFDM-DCSK. The hybrid function is processed at the end of the transmitter before transmitting the signal. However, there is no need for an inverse function at the receiver, which decreases the system complexity. Several techniques have been proposed in the literature for decreasing the PAPR value. Clipping and companding are active methods in terms of reducing the PAPR. Finally, the PAPR reduction and bit error rate (BER) performances are evaluated. The simulation results show that this technique gives better performance as compared with the clipping and companding techniques.

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