Analysing the effect of modulation schemes and subcarriers on PAPR influence of Hybrid combination of Selective Mapping, Partial Transmit Sequence and Clipping

Orthogonal Frequency Division Multiplexing is a multi-carrier modulation technique which provides numerous advantages like high spectral efficiency, minimal interference, low multipath fading, etc. But Peak-to-average Power Ratio is a severe challenge in using such multiplexing technique as it introduces distortions in nonlinear devices. Various Peak-to-average Power Ratio reduction techniques have been investigated in the literature to improve the performance of Orthogonal Frequency Division Multiplexing systems. But, each of them suffers either from high complexity or degraded bit error rate or less spectral efficiency. For reducing Peak-to-average Power Ratio more effectively, a hybrid combination of Partial Transmit Sequence with Selective Mapping is detected to show better performance. In this paper, we have combined Goppa coding technique with this hybrid Selective Mapping and Partial Transmit Sequence for further improving the performance. Along with Peak-to-average Power Ratio reduction capability, the proposed technique also has inherent error control mechanism due to the use of coding. Based on the simulation results, we have concluded that the proposed technique provides good amount of Peak-to-average Power Ratio reduction than conventional techniques. The proposed technique is analyzed for different number of Orthogonal Frequency Division Multiplexing symbol candidates for Selective Mapping and different number of block divisions for Partial Transmit Sequence. Further, this technique is simulated for different number of subcarriers and modulation order and the simulation results are compared with each other. The proposed technique also shows better Bit error rate values for high Signal-to-Noise ratio.

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Efficient Design of Selective Mapping and Partial Transmit Sequence Using T-OFDM

IEEE Transactions on Vehicular Technology ◽

10.1109/tvt.2019.2928361 ◽

2020 ◽

Vol 69 (3) ◽

pp. 2636-2648 ◽

Cited By ~ 6

Author(s):

Mohammed Shweesh Ahmed ◽

Said Boussakta ◽

Arafat Al-Dweik ◽

Bayan Sharif ◽

Charalampos C. Tsimenidis

Keyword(s):

Efficient Design ◽

Partial Transmit Sequence ◽

Selective Mapping

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Polygon Number Algorithm for Peak-to-Average Ratio Reduction of Massive 5G Systems Using Modified Partial Transmit Sequence Scheme

Wireless Communications and Mobile Computing ◽

10.1155/2021/7498240 ◽

2021 ◽

Vol 2021 ◽

pp. 1-10

Author(s):

Hayder Alkatrani ◽

Muhammad Ilyas ◽

Salam Alyassri ◽

Ali Nahar ◽

Fadi Al-Turjman ◽

...

Keyword(s):

Side Information ◽

Average Power ◽

Transmission Efficiency ◽

Similar Data ◽

Ofdm Systems ◽

Partial Transmit Sequence ◽

High Power Amplifier ◽

Major Shortcoming ◽

Selective Mapping ◽

Ratio Reduction

The high peak-to-average power ratio (PAPR) of the transmit signal is a major shortcoming of OFDM systems, which results in band radiation and distortion due to the nonlinearity of the high-power amplifier (H.P). To resolve the traditional OFDM high-PAPR issue, where the transmit sequence is designed to avoid similar data from being sent in the same order to reduce PAPR, there are numerous conventional ways for lowering the PAPR for OFDM system, such as selective mapping, tone reservation, block coding, filtering, clipping, and partial transmit sequence (PTS). This study proposes a new method called polygon number algorithm (PN) with conventional partial transmit sequence (C-PTS). This method (PN-PTS) processes the entered data before sending it, taking advantage of the number nonsimilarity according to the geometry of the number to prevent direct sending of similar data via PTS, and thus, this improved the level of PAPR rise in the proposed system. The amount of reduction that can be achieved in PAPR is up to 8 dB by different techniques. The best result obtained was the amount of reduction between the conventional method and the proposed method is 4.5683 where N = 64 . Besides this, there is no transmission of side information (SI), which improves transmission efficiency. Finally, this method is easy in the calculation process and the ciphering and deciphering of data, which adds a few calculations.

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PAPR Reduction in MIMO-OFDM Using Modified PTS Scheme With Hybride ABC-FF Algorithem

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i4.5.20196 ◽

2018 ◽

Vol 7 (4.5) ◽

pp. 423

Author(s):

K. Aruna Kumari ◽

Dr. K. Sri Rama Krishna

Keyword(s):

Antenna Arrays ◽

Orthogonal Frequency Division Multiplexing ◽

Average Power ◽

System Capacity ◽

Papr Reduction ◽

Partial Transmit Sequence ◽

High Data ◽

In Series ◽

Mimo Ofdm ◽

Selective Mapping

Orthogonal Frequency Division Multiplexing (OFDM) is an admired method for high data rate wireless transmission. OFDM can be clubbed with antenna arrays at the transmitter and receiver to increase diversity gain to enhance the system capacity on time variant and frequency selective channels, resulting in (Multi input and Multi output)MIMO. One main flaw of MIMO-OFDM is that the signals transmitted on different antennas might exhibit a prohibitively large Peak-to-Average Power Ratio (PAPR). There are two techniques mainly used to mitigate the effect of PAPR namely Partial Transmit Sequence (PTS) and Selective Mapping (SLM). In this paper a new optimized Partial Transmit Sequence (PTS) scheme and SLM for PAPR reduction in MIMO-OFDM have been proposed. Both the techniques are connected in series to get efficient throughput. Hybrid of ABC–FF algorithm has been intended for optimal phase factor. The proposed technique has achieved better results than existing techniques. This intended technique has been implemented on the working platform of MATLAB.

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Evaluasi Penerapan Algoritma Neural Network Sebagai Teknik Reduksi PAPR Pada Sistem OFDM

INOVTEK Polbeng - Seri Informatika ◽

10.35314/isi.v6i1.1934 ◽

2021 ◽

Vol 6 (1) ◽

pp. 147

Author(s):

Mohamad Ridwan ◽

Melki Mario Gulo ◽

Yoedy Moegiharto ◽

Arifin Arifin ◽

Muhammad Milchan

Keyword(s):

Neural Network ◽

Bit Error Rate ◽

Error Rate ◽

Partial Transmit Sequence ◽

Selective Mapping ◽

Clipping And Filtering

Pada makalah ini dilakukan evaluasi kinerja algoritma Neural Network sebagai teknik reduksi sistem OFDM. Hasil simulasi untuk sinyal OFDM dengan jumlah subcarrier sebanyak 64 dan modulasi 16 QAM menunjukkan penerapan algorima NN menghasilkan penurunan nilai PAPR sekitar 5,6 dB dari PAPR sinyal OFDM tanpa reduksi. Juga dibandingkan dengan teknik reduksi PAPR metode Iterative Clipping and Filtering, (ICF), Selective Mapping (SLM) dan Partial Transmit Sequence (PTS). Dari kurva CCDF juga ditunjukkan bahwa metode NN menghasilkan kinerja yang lebih baik dibanding metode digabungkan dengan teknik Iterative Clipping and Filtering, (ICF), Selective Mapping (SLM) dan Partial Transmit Sequence (PTS). Evaluasi di sisi penerima dengan pengamatan nilai bit error rate, penerapan algoritma NN memiliki kinerja yang terbaik

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