Peak-to-Average Power Ratio Reduction based Varied Phase for MIMO-OFDM Systems

Amhaimar, Lahcen; Ahyoud, Saida; Asselman, Adel; Elkhaldi, Said

doi:10.14569/ijacsa.2016.070958

Cited by 7 publications

(7 citation statements)

References 21 publications

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“…Ad-PTS scheme is lower PAPR reduction gain than PR-PTS scheme. In contrast, IL-PTS scheme considers the worst PAPR reduction performance, but its computational complexity is lower than other methods [30].…”

Section: Pts Segmentation Schemesmentioning

confidence: 94%

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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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Section: Pts Segmentation Schemesmentioning

confidence: 94%

“…The CCDF denotes the probability that the PAPR of the OFDM signal exceeding the threshold value, which can be defined as [30] …”

Section: Ofdm Systemmentioning

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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show abstract

“…Also, it is found that without channel estimation the system performance is decreases and leads to higher chances of errors. Author Lahcen et al [13] Fig.2) described here comprises the transmitter and receiver section which incorporates the forward error correction. The design intends to transmit a binary data/image to the receiver with a less error rate with fading and noise effects.…”

Section: Related Workmentioning

confidence: 99%

Design of of DM with interpolated FIR Filter channel estimation based Fixed WIMAX System for Data and Image Transmission

kumar T R *,

Prasad

2019

IJRTE

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The growth in the today’s wireless communication has lend the demand of highly quality of service (QoS) in transmission. The existing telecommunication industries are providing the transmission with the speed of Kbps to Mbps while most of the industries are failed to better QoS. The significant technique called Orthogonal Frequency Division Multiplexing (OFDM) provides the better QoS but leads to high Cyclic Prefix (CP). The WIMAX (Worldwide Interoperability for Microwave Access) is a broadband wireless access technology that adopts the OFDM. This paper introduces OFDM based WIMAX system performance analysis using CP. The Simulink model is designed with 16 Quadrature Amplitude Modulation (QAM) with CP using MATLAB. The QAM scheme was examined for Bit Error Rate (BER) over Additive White Gaussian Noise (AWGN) channel and multipath Rayleigh fading channel that is subjected to the CP. The proposed OFDM system proved to possess a better BER for without fading channels. The OFDM data/image transmission includes AWGN and Rayleigh with different cyclic prefix values1/4, 1/8 and 1/16 is plotted. The Cyclic prefix values are changing accordingly for transmitter and receiver. When Eb/No is 22db, the BER value 6.8e-5, 5.6e-5 and 5.8e-5 generated, for 1/4, 1/8 and 1/16 different cyclic prefix values respectively. Similarly, for image transmission proposed design achieves 19.94dB of PSNR value for SNR value of 7dB with respect to code rate ½ with 16-QAM

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“…7 Therefore, it is important to provide a mode of transmission that is near to the power level. The OFDM has a higher peak-to-average ratio 28,29 ; hence, it cannot be used. As a result, the LTE uses SC-FDMA modulation scheme.…”

Section: Sc-fdma For Uplinkmentioning

confidence: 99%

Performance analysis of LTE physical layer using hardware cosimulation techniques and implementation on FPGA for communication systems

Venkataramanan

Lakshmi

2019

Int J Communication

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The recent mobile networks provide large data access using long-term evolution networks. Long-term evolution networks are a third-generation partnership project standard that provides different speed limits for uplink and downlink. The different network operators have different bandwidth requirements to provide different services. Long-term evolution improves the efficiency of the network. The analysis of long-term evolution is performed using different signal processing algorithms that require a realistic, flexible, and standard compliant simulation environment. This study emphasizes to measure the performance of long-term evolution downlink and uplink physical layer based on Release 11, 12, and 13. The analysis of orthogonal frequency division multiple access for downlink and single-carrier frequency division multiplexing access for uplink using different modulation schemes like quadrature amplitude modulation (4, 16, 64) and different antenna configurations in long-term evolution physical layer is analyzed using hardware cosimulation platform.

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Peak-to-Average Power Ratio Reduction based Varied Phase for MIMO-OFDM Systems

Cited by 7 publications

References 21 publications

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

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

Design of of DM with interpolated FIR Filter channel estimation based Fixed WIMAX System for Data and Image Transmission

Performance analysis of LTE physical layer using hardware cosimulation techniques and implementation on FPGA for communication systems

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