An efficient combinational approach for PAPR reduction in MIMO–OFDM system

Pachori, Khushboo; Mishra, Amit

doi:10.1007/s11276-015-0974-4

Cited by 21 publications

(12 citation statements)

References 23 publications

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“…These two methods are less complex than the conventional method, though they become more complex as more users participate. A parallel combination scheme has been proposed to sustain bit error rates and to limit the PAPR . In this scheme, signals are clipped and an acceptable PAPR is chosen.…”

Section: Related Workmentioning

confidence: 99%

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Secure cognitive radio‐based synchronized transmission of 5G signals using massive MIMO‐OFDM‐ES

Pari

Karuppiah

Islam

2018

Int J Communication

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Summary A cognitive radio network (CRN) can address spectrum scarcity issues to achieve higher levels of spectral efficiency. Fifth‐generation (5G) technologies are advanced telecommunication technologies that are built into CRNs. Network performance is enhanced when using a massive multiple input multiple output (MIMO) system that tolerates a large number of users based on the use of multiple antennas. Several previous research works have been conducted on 5G CRNs, although these works have failed to mitigate interference and the peak‐to‐average power ratio (PAPR). In this paper, a 5G CRN with massive MIMO that ensures secure data transmission is developed. Security is ensured via the standardized key–based secrecy method supported by a certificate authority. A CRN fusion centre (FC) plays a vital role in decision making. Fusion centre rotation is applied to mitigate interference. Massive MIMO‐OFDM effective signalling is used to address PAPR problems. The proposed CRN is experimentally modelled using network simulator 3, and its performance is evaluated. Our simulation results reveal improvements in channel capacity, a reduction in the PAPR and bit error rates, and improvements in spectral efficiency.

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Section: Related Workmentioning

confidence: 99%

“…A parallel combination scheme has been proposed to sustain bit error rates and to limit the PAPR. 18 In this scheme, signals are clipped and an acceptable PAPR is chosen. When this scheme cannot be implemented, the procedure is repeated until the system identifies a signal with a low PAPR.…”

Section: Related Workmentioning

confidence: 99%

Secure cognitive radio‐based synchronized transmission of 5G signals using massive MIMO‐OFDM‐ES

Pari

Karuppiah

Islam

2018

Int J Communication

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“…An OFDM system has many advantages that make it superior to the rest of the multicarrier modulation techniques, such as a high capacity, immunity against intersymbol interference, and efficient bandwidth utilization [1][2][3]. OFDM is also utilized in the long-term evaluation (LTE) standard for fourth generation (4G) mobile communications [7,8], and OFDM has recently been considered as one of the essential candidates in fifth generation (5G) wireless communication systems [9]. OFDM is also utilized in the long-term evaluation (LTE) standard for fourth generation (4G) mobile communications [7,8], and OFDM has recently been considered as one of the essential candidates in fifth generation (5G) wireless communication systems [9].…”

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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“…However, Singh and Singh (2016) merged two techniques, SLM and PTS to enhance the PAPR restraining execution. In the same manner, Pachori and Mishra (2016) integrated PTS and ACE in parallel to diminish the PAPR value accordingly.…”

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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An efficient combinational approach for PAPR reduction in MIMO–OFDM system

Cited by 21 publications

References 23 publications

Secure cognitive radio‐based synchronized transmission of 5G signals using massive MIMO‐OFDM‐ES

Secure cognitive radio‐based synchronized transmission of 5G signals using massive MIMO‐OFDM‐ES

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

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