Design of Efficient Power Amplifier Models Using 16-QAM

被引：0
|
作者：
Swaminathan, J. N. [1 ]
Kumar, P. [2 ]
机构：
[1] Madanapalle Inst Technol & Sci, Dept Elect & Commun Engn, Madanapalle, Andhra Prades, India
[2] KS Rangasamy Coll Technol, Dept ECE, Thiruchengode, India
来源：
WIRELESS PERSONAL COMMUNICATIONS | 2017年 / 95卷 / 03期
关键词：
Least mean square (LMS); Regressive least square (RLS); Quadrature amplitude modulation (QAM); Orthogonal frequency division multiplexing (OFDM); Predistorter; REDUCTION; PREDISTORTER; RATIO; HPA; SLM;
D O I：
10.1007/s11277-017-3981-1
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this paper a predistorter linearizer is designed to reduce the memory less and also memory effect in different power amplifier models. The proposed method is based on the joint working principle of RLS filter model (polynomial) which compensate intermodulates and the multi-level system excludes the trade-off between precision and adaptation speed. The Predistorter model is validated by utilizing the orthogonal frequency division multiplexing in 16-QAM modulation. The Matlab realization of the proposed system shows 32x-34x faster convergence time than predistorter based on conventional LMS model with same adaptation step.
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页码：3003 / 3012
页数：10
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