New MMSE Downlink Channel Estimation for Sub-6 GHz Non-Line-of-Sight Backhaul
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Bibliographic record
Abstract
The minimum mean square error (MMSE) channel estimator employs the second-order statistics of the channel condition to minimize the mean square error. The major disadvantage of the MMSE estimator is its high complexity. In this paper, a new technique based on a one-dimensional MMSE method using frequency-domain interpolation followed by time-domain interpolation is proposed. Also, an energy efficient channel estimator based on power-delay-profile tracking and noise/interference power estimation method for sub-6 GHz backhaul link is analysed. The proposed algorithm is evaluated using a high delay spread Stanford University Interim SUI-5 and SUI-3 channel NLOS models for fixed backhaul wireless applications and small cells.
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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 | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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