Low complexity PAPR reduction in SLM-OFDM system using time domain sequence separation

Sudha, V.; Kumar, Dharmendra

doi:10.1016/j.aej.2017.11.006

Cited by 27 publications

(8 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A hybrid scheme that combines enhanced PTS and Mu-Law companding for PAPR reduction in OFDM system has been presented by Ibraheem et al [46]. In order to solve the problem of computational complexity that is associated with selected mapping (SLM), Sudha and Kumar [47] used a time domain sequence separation to provide low complexity PAPR reduction in SLM-OFDM system. Ali and Hamza [48] proposed the use of SLM technique based on GA to reduce PAPR in OFDM system.…”

Section: Research Direction Toward Papr Performance Optimizationmentioning

confidence: 99%

Untitled

2020

IJCSENET

View full text Add to dashboard Cite

A combination of Multiple Input and Multiple Output (MIMO) and Orthogonal Frequency Division Multiplexing (OFDM) results to a wireless communication system called MIMO-OFDM system. This paper has presented a review of peak to average power ratio (PAPR) reduction in MIMO-OFDM system. Since MIMO-OFDM is a generalized case of OFDM systems based on space time block code (STBC) for two, three, and four antennas, the focused of the study has been on the reduction of PAPR in OFDM signal. With many challenges associated with the implementation of OFDM, one major drawback is the effect of sum of several sinusoids due to time domain OFDM signal that leads to high PAPR. Several techniques have been proposed to address this problem, with more recent algorithms using optimization scheme or hybrid scheme presented in literature. This paper has examined the various techniques with respect to their merit and demerit in the reduction of PAPR of OFDM signal. It presented a hybrid scheme as a way forward to reducing PAPR in OFDM system.

show abstract

Section: Research Direction Toward Papr Performance Optimizationmentioning

confidence: 99%

Untitled

2020

IJCSENET

View full text Add to dashboard Cite

show abstract

“…Based on the above survey and to the best of our knowledge, two studies depending on complex data decomposition have been reported regarding a PAPR reduction. The first is a technique developed in part by Sudha and Kumar [13], who described a low-complexity PAPR reduction in an SLM-OFDM system using a time-domain sequence separation. Prior to the IDFT process, this method introduced a computational complexity in the same manner as a conventional SLM, where U IDFTs copies are processed.…”

Section: Introductionmentioning

confidence: 99%

PAPR Reduction Method based on In-phase/Quadrature Data Symbol Components in MIMO-OFDM Systems

Al-Rayif

2021

JCOMSS

View full text Add to dashboard Cite

“…Also, high PAPR results in intermodulation and out-ofband radiation due to the nonlinearity in the power amplifier [9]. Therefore, many PAPR reduction schemes such as clipping and filtering [10,11], block coding [12,13], partial transmit sequence (PTS) [14], selected mapping (SLM) [15], tone injection (TI) [16], tone reservation (TR) [17], active constellation extension (ACE) [18], and random phase injection algorithms are used [19].…”

Section: Introductionmentioning

confidence: 99%

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

Alkatrani

Ilyas

Alyassri

et al. 2021

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

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.

show abstract

Low complexity PAPR reduction in SLM-OFDM system using time domain sequence separation

Cited by 27 publications

References 15 publications

Untitled

Untitled

PAPR Reduction Method based on In-phase/Quadrature Data Symbol Components in MIMO-OFDM Systems

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

Contact Info

Product

Resources

About