Hardware-Efficient Implementation of Piece-wise Digital Predistorters for Wideband 5G Transmitters
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Bibliographic record
Abstract
This paper proposes a hardware-efficient implementation of the digital predistortion (DPD) engine in wideband fifth-generation (5G) transmitters. This efficient implementation employs a DPD model comprising a piece-wise linear (PWL) function that covers unequal non-overlapping segments of the squared magnitude of the input signal range. When compared with prior works, the proposed PWL-based model is less complex in that it does not require the implementation of the square-root function. Furthermore, a parallelized implementation of the PWL-based DPD engine is proposed to reduce the required hardware processing rate. Compared to previous works, the proposed implementation simplifies the on-chip routing structure needed.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it