Reducing the power envelope fluctuation of OFDM systems using side information supported amplitude clipping approach

Taher, Montadar Abas; Mandeep, J. S.; Ismail, Mahamod; Samad, Salina Abdul; Islam, Mohammad Tariqul

doi:10.1002/cta.1896

Cited by 24 publications

(16 citation statements)

References 58 publications

(55 reference statements)

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“…On the other hand, many effective strategies have been suggested to combat the high PAPR value, for example, the partial transmit sequence (PTS) [11], the PTS algorithm with maximum likelihood sequence detecting (ML-PTS) [12], selective mapping [13], the interleaving method [14], active constellation extension (ACE) [15], clipping and filtering [16], and block coding [17]. Moreover, new techniques have recently been proposed to improve the spectral efficiency of OFDM systems such as OFDM with index modulation (OFDM-IM) [18] and generalized precoding-aided quadrature spatial modulation (GPQSM) [19].…”

Section: Introductionmentioning

confidence: 99%

New low-complexity segmentation scheme for the partial transmit sequence technique for reducing the high PAPR value in OFDM systems

et al. 2018

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Orthogonal frequency division multiplexing (OFDM) has been the overwhelmingly prevalent choice for high‐data‐rate systems due to its superior advantages compared with other modulation techniques. In contrast, a high peak‐to‐average‐power ratio (PAPR) is considered the fundamental obstacle in OFDM systems since it drives the system to suffer from in‐band distortion and out‐of‐band radiation. The partial transmit sequence (PTS) technique is viewed as one of several strategies that have been suggested to diminish the high PAPR trend. The PTS relies upon dividing an input data sequence into a number of subblocks. Hence, three common types of the subblock segmentation methods have been adopted—interleaving (IL‐PTS), adjacent (Ad‐PTS), and pseudorandom (PR‐PTS). In this study, a new type of subblock division scheme is proposed to improve the PAPR reduction capacity with a low computational complexity. The results indicate that the proposed scheme can enhance the PAPR reduction performance better than the IL‐PTS and Ad‐PTS schemes. Additionally, the computational complexity of the proposed scheme is lower than that of the PR‐PTS and Ad‐PTS schemes.

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Section: Introductionmentioning

confidence: 99%

New low-complexity segmentation scheme for the partial transmit sequence technique for reducing the high PAPR value in OFDM systems

et al. 2018

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“…The high PAPR is classified as the main obstacle to the OFDM system in real applications. Thus numerous algorithms have been suggested to beat the high PAPR, for example, selective-mapping (SLM) (Taher et al, 2013), partial transmit sequences (PTS) (Müller and Huber, 1997a), tone injection (Han and Lee, 2005), coding technique (Jiang and Wu, 2008), clipping and filtering (Taher et al, 2014), and active constellation extension (ACE) (Krongold and Jones, 2003).…”

Section: Introductionmentioning

confidence: 99%

A low PAPR performance with new segmentation schemes of partial transmit sequence for OFDM systems

Jawhar¹,

Shah

Taher

et al. 2017

Int. j. adv. appl. sci

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Despite the fact that OFDM has numerous features, the high peak-to-average power ratio (PAPR) deems one of the challenging disadvantages face by the system in the real applications. The high PAPR limits the OFDM signal efficiency on the transmitter side. Thus many PAPR alleviation approaches have been suggested in the past. Partial transmit sequences (PTS) has been accounted as one of the successful procedures for decreasing the high PAPR; with the consideration that the computational complexity of the PTS method regarded high relatively. Moreover, improving the PAPR mitigation performance of the PTS algorithm relies upon the number of the partitioned subblocks, the number of the phase rotation vectors, and the kind of the segmentation scheme utilized. This article presents new segmentation schemes to enhance the PAPR mitigation execution without further intricacy on the system. Adjacent shifting segmentation scheme (Ad-Sh-PTS) and rows exchange of interleaving segmentation schemes (IL-Ex-PTS) are proposed depending on the two well-known segmentation schemes of adjacent partition PTS (Ad-PTS) and interleaving partition PTS (IL-PTS). The simulation demonstrates that the suggested algorithms can accomplish mitigation in PAPR preferable compared to the traditional schemes, Ad-PTS and IL-PTS schemes.

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“…In order to reduce the PAPR, many methods have been proposed, such as clipping [14] [15], clipping and filtering [16], coding techniques [17], selective mapping (SLM) [18] [19], partial transmit sequence (PTS) [20] and tone injection [21]. Among these methods PTS is an effective technique, and it can improve the PAPR reduction performance.…”

Section: Introductionmentioning

confidence: 99%

An Enhanced Partial Transmit Sequence Segmentation Schemes to Reduce the PAPR in OFDM Systems

Al‐Jawhar¹,

Shah²,

Taher³

et al. 2016

ijacsa

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Abstract-Although the orthogonal frequency division multiplexing system (OFDM) is widely used in high-speed data rate wire and wireless environment, the peak-to-average-powerratio (PAPR) is one of its major obstacles for the real applications. The high PAPR value leads some devices of the OFDM system such as power amplifiers and analog to digital converters to work out of band of these devices. Thus the system efficiency is degraded. Many techniques have been proposed to overcome the high PAPR in OFDM systems such as partial transmit sequences (PTS), selected mapping and interleaving technique. PTS is considered as one of the effective PAPR reduction methods; this scheme depends on segmentation of the input data into several subblocks and then combined again. The three well-known segmentation schemes are pseudo-random, adjacent and interleaving; each scheme has PAPR reduction performance, and computational complexity differs from one to another. In this paper, five types of segmentation schemes are proposed to improve the PAPR reduction execution including sine and cosine shape as well as hybrid interleaving and adjacent schemes in new approaches. From the simulation results, the proposed methods can achieve PAPR reduction performance greater than that of the adjacent and interleaving partition schemes, without increasing the computational complexity of the system. Moreover, the enhanced schemes can realize better PAPR performance with any number of subcarriers.

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Reducing the power envelope fluctuation of OFDM systems using side information supported amplitude clipping approach

Cited by 24 publications

References 58 publications

New low-complexity segmentation scheme for the partial transmit sequence technique for reducing the high PAPR value in OFDM systems

New low-complexity segmentation scheme for the partial transmit sequence technique for reducing the high PAPR value in OFDM systems

A low PAPR performance with new segmentation schemes of partial transmit sequence for OFDM systems

An Enhanced Partial Transmit Sequence Segmentation Schemes to Reduce the PAPR in OFDM Systems

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