A Link Level Study on LDM for Mixed Broadcast-Broadband Service Delivery in 5G
Why this work is in the frame
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Bibliographic record
Abstract
This paper addresses the use of Layered Division Multiplexing (LDM) as a method to deliver multiple services in 5G New Radio (NR). LDM is a technique that allows multiple services to be delivered over the same time-frequency resource by allocating transmission power between different layers. A two-layered LDM system can be implemented in 5G NR to deliver both Single Frequency Network (SFN) broadcast service and broadband service over a single time-frequency resource. The integration of 5G beamforming into LDM allows for the creation of sufficiently wide beams for SFN broadcast service and narrow beams for broadband service. Theoretical analysis and link level simulation demonstrate that this approach can provide both services with more spectral efficiency and energy saving.
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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 | 0.001 |
| 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