Indoor radio path loss comparison between the 1.7 GHz and 37 GHz bands
Why this work is in the frame
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Bibliographic record
Abstract
Third generation indoor wireless systems providing broadband communications will make use of higher frequency millimeter wave bands. In the planning of these networks it would be useful to estimate coverage based on the many studies of indoor propagation at L-band coupled with knowledge of the building structure. This paper presents results of a comparison between path loss at 1.75 GHz and 37.2 GHz from 100 locations throughout four buildings. The authors analyze the large scale path loss in line of sight and obstructed paths, compare this with building layout and construction and then estimate transmission loss through walls. Results indicate that at 1.75 GHz the non line of sight signals decayed with distance to the exponent N=2.7 while for 37.2 GHz on average N=3.5. The propagation loss through walls at 37.2 GHz showed a much higher dependence on construction type than at 1.7 GHz.
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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