BER analysis of PAPR reduction techniques in SFBC OFDM system: A review

Kota, P. N.; Gaikwad, Arun N.; Patil, B. P.

doi:10.1109/infop.2015.7489360

Cited by 2 publications

(2 citation statements)

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“…Signal distortion methods introduce spectral regrowth or distort the spectrum of the signal and transmit a PAPR signal with no extra data. These techniques consisting clipping and filtering scheme [16][17][18][19][20] and compandings methods [1], [2], [21][22][23], [24] which are the famous signal distortion schemes. The clipping-filtering scheme prompts a significant increment in BER performance at the receiver side.…”

Section: Introductionmentioning

confidence: 99%

New Efficient PAPR Reduction Schemes in LTE OFDM Systems

Nokaiee¹,

Alkhawlani²

2019

Signals and Telecommunication

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Orthogonal frequency division multiplexing (OFDM) is a prominent, new multicarrier modulation technology used with most 4G wireless communication systems. It was configured with MIMO to transmit very high rates of digital information with enhanced performance and speed. However, OFDM faced high peak to average power ratio (PAPR) issue at the transmitter. In this paper, a new companding method called advanced exponential companding (AEC) is proposed to provide better PAPA and BER performance than standard exponential companding (EC) and Mu-law companding while keeping constant average power before and after companding process. In addition, a new efficient hybrid scheme that is containing Zaddoff Chu Matrix Transform (ZCT) precoding and the proposed AEC companding is developed. The new scheme lessens the signal distortion caused by AEC companding and gives a great improvement in both PAPR & BER performance in comparison with AEC in both LTE SISO-OFDM and LTE MIMO-OFDM systems. It produces high PAPR performance with slight SNR loss at 10^-3 BER against ZCT precoding with LTE MIMO-OFDM system. It offers the best results in terms of PAPR & BER against those related existing hybrid methods, namely; discrete hartley transform (DHT) precoding + Mu-law companding, Zadoff -chu matrix transform (ZCT) + Mu-law companding, Walsh Hadamard Transform (WHT) precoding + Mu-law companding, Walsh Hadamard Transform (WHT) precoding + exponential companding (EC), and discrete cosine transform (DCT) precoding + Mu-law companding for LTE SISO-OFDM system.

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Section: Introductionmentioning

confidence: 99%

New Efficient PAPR Reduction Schemes in LTE OFDM Systems

Nokaiee¹,

Alkhawlani²

2019

Signals and Telecommunication

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“…Up to now, PAPR issue kept OFDMA from being wireless standards in the uplink of communication systems. If the OFDMA signal sends by means of a not adequately wide nonlinear power amplifier, resulting is out-band radiation, in-band distortion and spectrum expanding will be produced and leading to increase(distortion) in BER performance [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

New Hybrid Schemes for PAPR Reduction in OFDM Systems

Nokaiee¹,

اليمن²,

Alkhawlani³

2018

JST

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The 3rd Generation Partnership Project (3GPP) introduced LTE to meet increasingly demands for communication services with high speed and quality. LTE uses OFDM in the form of OFDMA in the downlink and SCFDMA in the uplink combined with MIMO offering high data rate, high capacity and immunity against multipath channels. However, still the high PAPR of the LTE transmitted signal is the major problem affecting overall system performance degradation and power efficiency. A plenty of research has been devoted to reduce the performance degradation due to the PAPR problem inherent to LTE OFDM systems. A portion of the current techniques such companding methods have low-complexity, no constraint on modulation format and subcarrier size, good distortion and spectral properties; however, they have limited PAPR reduction capabilities. This paper proposes seven new hybrid schemes including Zaddoff Chu Matrix Transform (ZCT) precoding and six modern companding methods; Rooting Companding (RCT), New Error Function Companding (NERF), Absolute Exponential Companding (AEXP), Logarithmic Rooting Companding (LogR), Cosine Companding (COS) and Tangent Rooting Companding (TanhR). Furthermore, the seventh proposed hybrid scheme has been added incorporating ZCT precoding with new proposed companding called Advanced AEXP (AAEXP) companding. The developed methods are combining properties of both ZCT & Compandings, and achieving superior PAPR performance and optimal BER. Simulations results illustrate that the new seven proposed hybrid schemes achieve better PAPR reduction, and BER performance and the best achievement has been achieved by ZCT+AAEXP scheme. Companding Methods( ‫إ�ص��ارة‬ ‫اال‬ ‫�صغ��ط‬ ‫ط��رق‬ ‫وله��ا‬ ،)Subcarrier Size( ‫احلوام��ل‬ ‫ع��دد‬ ‫وحج��م‬ ‫الت�صم��ن‬ ‫�ص��كل‬ ‫عل��ى‬ ‫قي��ود‬ ‫وب��ا‬ ‫التعقي��د،‬ ‫ومنخف�ص��ة‬ ‫البحث‬ ‫هذا‬ ‫اق��رتح‬ ‫وقد‬ ‫�صئيل.‬ ‫مبق��دار‬ PAPR ‫ال�‬ ‫تقلل‬ ‫الط��رق‬ ‫هذه‬ ‫إن‬ ‫فا‬ ‫ذل��ك‬ ‫ومع‬ ‫جي��دة،‬ ‫طيفي��ة‬ ‫خ�صائ��ص‬ ‫م��ع‬ )ZCT(‫ا‬Zaddoff Chu Matrix Transform ‫م��ن‬ ‫مزي��ج‬ ‫أ�صا��ص‬ ‫ا‬ ‫عل��ى‬ ‫جدي��دة‬ ‫هجين��ة‬ ‫ط��رق‬ ‫�صبع��ة‬ New Error‫)،ا‬RCT(‫ا‬Rooting Companding ‫وه��ي‬ ‫إ�ص��ارة‬ ‫اال‬ ‫�صغ��ط‬ ‫ط��رق‬ ‫من‬ ‫خمتلفة‬ ‫أ�صالي��ب‬ ‫ا‬ ‫�ص��ت‬ ‫)،ا‬AEXP(‫ا‬Absolute Exponential Companding‫)،ا‬NERF(‫ا‬Function Companding ،)COS(‫ا‬Cosine Companding‫)،ا‬LogR(‫ا‬Logarithmic Rooting Companding ‫الهجين��ة‬ ‫الطريق��ة‬ ‫تطوي��ر‬ ‫مت‬ ‫ذل��ك‬ ‫إىل‬ ‫ا‬ ‫إ�صاف��ة‬ ‫باال‬ .)TanhR(‫ا‬Tangent Rooting Companding‫و‬ ‫مقرتح��ة‬ ‫جدي��دة‬ ‫طريق��ة‬ ‫م��ع‬ )ZCT(‫ا‬Zaddoff Chu Matrix Transform ‫ال��‬ ‫وجتم��ع‬ ‫ال�صابع��ة‬ ‫خ�صائ��ص‬ ‫ب��ن‬ ‫جتم��ع‬ ‫املتط��ورة‬ ‫الط��رق‬ ‫ه��ذه‬ ‫أن‬ ‫ا‬ ‫النتائ��ج‬ ‫أظه��رت‬ ‫ا‬ .)AAEXP(‫ا‬Advanced AEXP ‫ت�صم��ى‬

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BER analysis of PAPR reduction techniques in SFBC OFDM system: A review

Cited by 2 publications

References 16 publications

New Efficient PAPR Reduction Schemes in LTE OFDM Systems

New Efficient PAPR Reduction Schemes in LTE OFDM Systems

New Hybrid Schemes for PAPR Reduction in OFDM Systems

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