On the Shift Value Set of Cyclic Shifted Sequences for PAPR Reduction in OFDM Systems

Kim, Kee Hoon

doi:10.1109/tbc.2016.2529292

Cited by 45 publications

(27 citation statements)

References 16 publications

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“…The baseband signal is sampled by multiple of the Nyquist rate before applying inverse fast Fourier transform (IFFT) to approximate the amplitude of the discrete time signal to the continuous time signal. Therefore, the transmitted signal in the time-domain can be written as [18]…”

Section: Papr In Ofdm Systemmentioning

confidence: 99%

Zero-Padding Techniques in OFDM Systems

Al‐Jawhar¹,

Ramli²,

Taher³

et al. 2018

IJEEI

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Although the OFDM system has been gaining importance in recent years, the high peak to average power ratio is considered the main limitation of the system. The oversampling operation in the frequency-domain plays an essential role in the PAPR calculations precisely. The main purpose of the paper to draw attention to zero-padding methods which are used to oversampled baseband OFDM signals. Moreover, to study the influence of the zero-padding methods on the accuracy of the PAPR calculations, and the spectral spreading of the OFDM signals. Simulation results show that the zero-padding method which inserts the zeros at the center of the baseband OFDM signal is better than the other zero-padding methods in terms of both accuracy PAPR calculations and spectral distribution. Electrical Engineering, College of Engineering at University of AL-Mustansiriya Baghdad, Iraq in 1998. He received his M.S. degree from Faculty of Electrical and Electronic Engineering, University Tun Hussein Onn Malaysia in 2015. He is currently working toward his Ph.D. degree at Faculty of Electrical and Electronic Engineering, University Tun Hussein Onn Malaysia. His research interests mainly focus on signal processing in communication, OFDM, PAPR reduction in Multicarrier system, 5G waveform design, and wireless network. Khairun Nidzam Ramli is a Senior Lecturer of Faculty of Electrical and Electronic Engineering at Universiti Tun Hussein Onn Malaysia (UTHM), Johor, Malaysia. He obtained his BEng in Electronic Engineering from the University of Manchester Institute of Science and Technology (UMIST), United Kingdom, in 1997, and the MEng at the Universiti Kebangsaan Malaysia (UKM), Malaysia, in 2004. He worked within the antennas and applied electromagnetic research group at University of Bradford, United Kingdom since 2007, on a number of projects, concentrating on antenna design and computational electromagnetics. Later, he obtained his PhD for research in electromagnetic analysis using hybrid computational techniques from the University of Bradford in 2011. His typical academic interests include wireless technologies, antennas, electromagnetics, and engineering computing. He is a member of the IEEE. Montadar Abas Taher received the B.

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Section: Papr In Ofdm Systemmentioning

confidence: 99%

Zero-Padding Techniques in OFDM Systems

Al‐Jawhar¹,

Ramli²,

Taher³

et al. 2018

IJEEI

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“…Subsequent to declaring that inserted partitioning was more suitable for IS-QC-LDPC codes than the block partitioning, edge graph like calculation makes some inadmissible IS-QC-LDPC codes which may increase the peak-to-average power ratio. A PAPR decrease strategy was depicted by K. Kim [15]. Orthogonal frequency division multiplexing (OFDM) signals have high peak toaverage power ratio (PAPR) that outcome in bending if OFDM flag licenses by means of a nonlinear high power enhancer.…”

Section: Recent Literature Reviewmentioning

confidence: 99%

Adaptive ABC Algorithm Based PTS Scheme for PAPR Reduction in MIMO-OFDM

Maddala¹,

Reddy²

2017

IJIES

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Abstract:The OFDM signals which have a broad peak-to-average power ratio is a basic prerequisite to be settled. The Orthogonal Frequency Division Multiplexing (OFDM) traces the Partial transmit sequences (PTS) which is one among the appealing procedures to diminish the peak-to-average power ratio (PAPR). An issue of modern computational multifaceted nature happens in The PTS scheme when prevalent quantities of sub blocks were consumed. In this article, another PTS scheme has been industrialized so as to decline the PAPR by picking the ideal stage factor esteem by means a versatile ABC optimization process. At the point when associated with MIMO-OFDM structures with a broad assortment of phase factors ABC based PTS calculation achieves about elite after simulation. It can essentially diminish the computational intricacy for bigger PTS subblocks and offers lower PAPR in the meantime. The anticipated philosophy is connected in the working stage of MATLAB and the utilitarian solutions were incited and researched.

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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]. Consequently, the OFDM framework has been adopted by numerous wireless systems, for example, digital video broadcasting, the wireless local area network (WLAN) that is the IEEE 802.11a/b/g/n standard, and worldwide interoperability for microwave access (WiMAX), which is the IEEE 802.16 standard [4][5][6]. 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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On the Shift Value Set of Cyclic Shifted Sequences for PAPR Reduction in OFDM Systems

Cited by 45 publications

References 16 publications

Zero-Padding Techniques in OFDM Systems

Zero-Padding Techniques in OFDM Systems

Adaptive ABC Algorithm Based PTS Scheme for PAPR Reduction in MIMO-OFDM

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

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