A Robust Digital Baseband Predistorter Constructed Using Memory Polynomials

Ding, Lei; Zhou, G.T.; Morgan, D.R.; Ma, Zhengxiang; Kenney, J.S.; Kim, Jaehyeong; Giardina, Charles R.

doi:10.1109/tcomm.2003.822188

Cited by 1,052 publications

(686 citation statements)

References 8 publications

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“…The vector signal generator and the spectrum analyzer act as a modulator and a demodulator, respectively. We select a 2-carrier wideband code division multiple access (WCDMA) signal with a bandwidth of 10 MHz as the input, and employ the indirect learning structure [8] with the LS algorithm for the identification. The models include both odd-and even-order terms [9].…”

Section: Resultsmentioning

confidence: 99%

“…Various linearization techniques for PAs have been proposed in the literature. These include feedforward [1], feedback [2], linear amplification with nonlinear components [3,4], analog predistortion [5,6], digital predistortion (DPD) [7,8,9,10,11,12], and so on. In fact, DPD is frequently used because it offers great flexibility and high efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…The memory polynomial (MP) model [7,8,9] is a widely used structure for DPD of PAs. However, its performance is limited.…”

Section: Introductionmentioning

confidence: 99%

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Digital predistortion of power amplifiers based on compound memory polynomial model

2013

IEICE Electron. Express

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Abstract:The memory polynomial (MP) model is a frequently used structure for digital predistortion (DPD) of power amplifiers (PAs) in wireless communication systems, but it has limited performance. In this paper, we propose a compound memory polynomial (CMP) model to enhance the accuracy. The CMP model is constructed by adding the terms concerning the difference of the input to the MP model. The effectiveness of the CMP model is demonstrated experimentally.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Digital predistortion of power amplifiers based on compound memory polynomial model

2013

IEICE Electron. Express

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“…Traditional single-band digital predistortion (DPD) techniques [1][2][3][4][5][6][7][8][9] fail to compensate nonlinear distortion of dual-band PAs. On the one hand, the sampling rate requirements for hardware facilities, the analog-to-digital converter (ADC) and the digital-to-analog converter (DAC), is impractical when the output signal of dual-band PA is sampled as a full band signal.…”

Section: Introductionmentioning

confidence: 99%

A Low-Complexity Dual-Band Model for Dual-Band Power Amplifiers Based on Volterra Series

Yu¹,

Liu²,

Li³

et al. 2015

PIER Letters

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Abstract-A novel low-complexity dual-band memory polynomial (2D-LCMP) model for linearization of dual-band power amplifiers (PAs) is proposed in this paper. The in-band intermodulation (IM) and cross-band modulation (CM) distortion terms in the prior two-dimensional models have different impacts on the model performance. Therefore, they are considered respectively in the proposed model. Some redundant distortion terms are removed away to decrease the model complexity. In addition, the nonlinearity order and memory depth are frequency dependent for each band. Experimental measurements were performed on two types of wideband PAs. The results prove the superiority of the 2D-LCMP model.

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“…Among them, the digital PD is a popular technique. The digital PD techniques utilize a predistorter in the baseband domain, whose characteristic is inverse of the PA to compensate for the nonlinearity [2,3,4].…”

Section: Introductionmentioning

confidence: 99%

A low cost adaptive digital predistorter for linearization of power amplifiers in MIMO transmitters

Jeong

Choi

2012

IEICE Electron. Express

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An adaptive digital predistortion (PD) technique is proposed for linearization of power amplifiers (PAs) in multiple-input multiple-output (MIMO) transmitters. We consider a PD structure equipped with only one combined feedback path while conventional systems have multiple feedback paths. Hence, the proposed structure is much simpler than that of multiple feedback paths. Based on the structure, a new PD algorithm is derived. The simulation results show that linearization performance of the proposed method is almost the same as the conventional multiple feedback technique while the former is much simpler to implement than the latter.

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A Robust Digital Baseband Predistorter Constructed Using Memory Polynomials

Cited by 1,052 publications

References 8 publications

Digital predistortion of power amplifiers based on compound memory polynomial model

Digital predistortion of power amplifiers based on compound memory polynomial model

A Low-Complexity Dual-Band Model for Dual-Band Power Amplifiers Based on Volterra Series

A low cost adaptive digital predistorter for linearization of power amplifiers in MIMO transmitters

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