Optimization of beam width, bit error rate and availability for free-space optical links
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
The design of free-space optical (FSO) communication links based on beam width optimization is investigated. Bit error rate (BER) and link availability for on-off keying (OOK) and pulse position modulations (PPM) are analyzed. For a required BER and fixed transmitted optical power, optimizing the transmitted beam width maximizes link availability. The combined effects of atmospheric turbulence and pointing errors are considered. Different weather conditions are considered and three scenarios are investigated: adaptive, semi-adaptive and fixed beam width over weather conditions. The performance-complexity tradeoff is analyzed in the design. Beam width adaptation for subsets of weather conditions as a sub-optimum solution shows a remarkable performance improvement over the fixed beam scenario. In all cases, significant performance in link availability is shown when employing PPM over widely used OOK signaling at a cost of more bandwidth.
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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 | 0.001 |
| 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