Exponential Companding Technique for PAPR Reduction in OFDM Systems

Jiang, Tao; Yang, Yang; Song, Yonghua

doi:10.1109/tbc.2005.847626

Cited by 295 publications

(146 citation statements)

References 17 publications

Supporting

Mentioning

145

Contrasting

Order By: Relevance

“…The exponential companding scheme can offer better PAPR reduction, BER, and phase error performance, and less spectrum side lobes [14], [15]. combination of two recent NCT based techniques which are inverse hyperbolic sine function and the revised exponential companding transform.…”

Section: ) System Criteriamentioning

confidence: 99%

See 1 more Smart Citation

HIS-RECT Nonlinear Compandique Technique for MC-CDMA MIMO Transmission

Loundou¹,

Yang²,

Yari³

et al. 2016

IJFCC

View full text Add to dashboard Cite

show abstract

Section: ) System Criteriamentioning

confidence: 99%

“…This paper analyses a new idea that is the combination of two recent NCT techniques which are inverse hyperbolic sine function namely C (. ), [8], [9]and the clipping concept function which is the revised exponential Companding transform with clipping namely MECCT, [10]: This new method is called HIS-RECT approach.…”

Section: Introductionmentioning

confidence: 99%

HIS-RECT Nonlinear Compandique Technique for MC-CDMA MIMO Transmission

Loundou¹,

Yang²,

Yari³

et al. 2016

IJFCC

View full text Add to dashboard Cite

show abstract

“…Jiang et al proposed exponential companding (EC) function [6] to transform Rayleigh distributed magnitude of OFDM signal to a uniformly distributed OFDM signal using an exponential function and this scheme is known as "Exponential Companding" scheme. Exponential companding scheme can effectively reduce the PAPR of the OFDM signal but its BER performance also degrades with PAPR reduction.…”

Section: Related Workmentioning

confidence: 99%

Review on PAPR Reduction in OFDM based system

Narula¹

2015

IJIRSET

View full text Add to dashboard Cite

ABSTRACT:In recent time, the demand for multimedia data services has grown up rapidly. One of the most promising multi-carrier system, Orthogonal Frequency Division Multiplexing (OFDM) forms basis for all 4G wireless communication systems due to its large capacity to allow the number of subcarriers, high data rate and ubiquitous coverage with high mobility. OFDM is significantly affected by peak-to-average-power ratio (PAPR). Unfortunately, the high PAPR inherent to OFDM signal envelopes will occasionally drive high power amplifiers (HPAs) to operate in the nonlinear region of their characteristic curve. The nonlinearity of the HPA exhibits amplitude and phase distortions, which cause loss of orthogonality among the subcarriers, and hence, inter-carrier interference (ICI) is introduced in the transmitted signal. Not only that, high PAPR also leads to in-band distortion and out-of-band radiation. Different techniques are used to reduce the Peak to Average Power Ratio (PAPR) to increase the efficiency of the OFDM system. In this paper some of these important techniques are reviewed.

show abstract

“…Another companding technique called Trapezoidal companding is a good method to suppress the PAPR of signal with comparatively low error rate [8]. It employs a piecewise function which is defined in three different magnitude intervals of the OFDM signal.…”

Section: Compandingmentioning

confidence: 99%

“…Various types of companding techniques e.g. μ-law companding [6], exponential companding [7], and trapezoidal companding [8], [9] are proposed in literature.…”

Section: Introductionmentioning

confidence: 99%

Peak-to-Average Power Ratio Reduction Techniques for OFDM Signals

Sharma¹

2014

IJCA

View full text Add to dashboard Cite

Orthogonal frequency division multiplexing (OFDM) has been adopted as a standard for many modern wireless applications requiring high data rate due to bandwidth efficiency, resistance to frequency selective fading and simple digital realization using IFFT/FFT operations. However, physical implementation of the OFDM system suffers from several difficulties. One of the major limitations of OFDM is that it suffers from high peak-to-average power ratio (PAPR), which results in inter-carrier interference (ICI), high out-ofband radiation, and degradation of bit error rate performance. In this paper, different OFDM PAPR reduction techniques are reviewed and analyzed based on their computational complexity, bandwidth requirement and error performance.

show abstract

Exponential Companding Technique for PAPR Reduction in OFDM Systems

Cited by 295 publications

References 17 publications

HIS-RECT Nonlinear Compandique Technique for MC-CDMA MIMO Transmission

HIS-RECT Nonlinear Compandique Technique for MC-CDMA MIMO Transmission

Review on PAPR Reduction in OFDM based system

Peak-to-Average Power Ratio Reduction Techniques for OFDM Signals

Contact Info

Product

Resources

About