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This is a Quantitative Study study.

September 24, 2025Open Access

Digital Post-Distortion Architectures for Nonlinear Power Amplifiers: Volterra and Kernel Methods

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Digital post-distortion optimizes signal quality in 5G devices, indicating the potential of Volterra and kernel methods.

Implementing digital post-distortion improves signal quality while reducing computational complexity.
Simulations demonstrate significant performance enhancements over existing state-of-the-art algorithms.
The use of frequency-domain equalization in conjunction with time-domain compensation balances efficiency and complexity.
Accounting for memory effects is critical for optimizing nonlinear compensation regardless of power amplifier characteristics.

Schäufele et al. (2025) studied this question.

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