Bidirectional Cooperative Relay Strategies for Transmitted Reference Pulse Cluster UWB Systems
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Bibliographic record
Abstract
In this paper, several bidirectional cooperative relay strategies for transmitted reference pulse cluster ultrawideband systems are proposed, followed by the bit error rate (BER) performance analyses for each of them. First, three bit-level channel quality indicators (CQIs) are proposed, which reflect the transmission quality depending on the multipath channel and the instantaneous noise. Suppose the channel remains unchanged for a period of time, a long-term CQI is also presented that depends only on the multipath channel but independent of noise. Second, based on the defined CQIs, relay cooperation strategies are proposed, analyzed, simulated, and compared. It is shown that the bit-level strategies outperform the long-term relay selections and the direct relay combining at the cost of higher complexity at the relay nodes. Min-Max relay selection and outage-based relay selection and combining achieve the best performance. Furthermore, analytical results are consistent with simulation, which validates the BER analysis. This study provides guidelines in the selection of a relay cooperation strategy with consideration of the performance and complexity tradeoff.
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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 | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| 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